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Finding the Fourth Proportional to 435,755.70, 653,633.55 and 155,171.70

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Solution

The fourth proportional to 435,755.70, 653,633.55 and 155,171.70 is: 232,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,755.70 : 653,633.55 = 155,171.70 : x
  2. Step 2: Convert to fraction form
    435,755.70/653,633.55 = 155,171.70/x
  3. Step 3: Cross multiply
    435,755.70x = 653,633.55 × 155,171.70
  4. Step 4: Simplify right side
    435,755.70x = 101,425,429,130.54
  5. Step 5: Solve for x
    x = 101,425,429,130.54/435,755.70
  6. Step 6: Final answer
    x = 232,757.55

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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.