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Finding the Fourth Proportional to 435,645.60, 653,500.80 and 155,126.40

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Solution

The fourth proportional to 435,645.60, 653,500.80 and 155,126.40 is: 232,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,645.60 : 653,500.80 = 155,126.40 : x
  2. Step 2: Convert to fraction form
    435,645.60/653,500.80 = 155,126.40/x
  3. Step 3: Cross multiply
    435,645.60x = 653,500.80 × 155,126.40
  4. Step 4: Simplify right side
    435,645.60x = 101,375,226,501.12
  5. Step 5: Solve for x
    x = 101,375,226,501.12/435,645.60
  6. Step 6: Final answer
    x = 232,701.14

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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.