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Finding the Fourth Proportional to 472,452.75, 708,679.13 and 140,028.75

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Solution

The fourth proportional to 472,452.75, 708,679.13 and 140,028.75 is: 210,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,452.75 : 708,679.13 = 140,028.75 : x
  2. Step 2: Convert to fraction form
    472,452.75/708,679.13 = 140,028.75/x
  3. Step 3: Cross multiply
    472,452.75x = 708,679.13 × 140,028.75
  4. Step 4: Simplify right side
    472,452.75x = 99,235,452,024.84
  5. Step 5: Solve for x
    x = 99,235,452,024.84/472,452.75
  6. Step 6: Final answer
    x = 210,043.13

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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.