Home / 472,972.20-709,458.30-140,548.20

Finding the Fourth Proportional to 472,972.20, 709,458.30 and 140,548.20

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Solution

The fourth proportional to 472,972.20, 709,458.30 and 140,548.20 is: 210,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,972.20 : 709,458.30 = 140,548.20 : x
  2. Step 2: Convert to fraction form
    472,972.20/709,458.30 = 140,548.20/x
  3. Step 3: Cross multiply
    472,972.20x = 709,458.30 × 140,548.20
  4. Step 4: Simplify right side
    472,972.20x = 99,713,087,040.06
  5. Step 5: Solve for x
    x = 99,713,087,040.06/472,972.20
  6. Step 6: Final answer
    x = 210,822.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.