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Finding the Fourth Proportional to 147,410.30, 220,853.01 and 68,386.70

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Solution

The fourth proportional to 147,410.30, 220,853.01 and 68,386.70 is: 102,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,410.30 : 220,853.01 = 68,386.70 : x
  2. Step 2: Convert to fraction form
    147,410.30/220,853.01 = 68,386.70/x
  3. Step 3: Cross multiply
    147,410.30x = 220,853.01 × 68,386.70
  4. Step 4: Simplify right side
    147,410.30x = 15,103,408,538.97
  5. Step 5: Solve for x
    x = 15,103,408,538.97/147,410.30
  6. Step 6: Final answer
    x = 102,458.30

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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.