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Finding the Fourth Proportional to 351,570.97, 527,352.61 and 85,331.49

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Solution

The fourth proportional to 351,570.97, 527,352.61 and 85,331.49 is: 127,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,570.97 : 527,352.61 = 85,331.49 : x
  2. Step 2: Convert to fraction form
    351,570.97/527,352.61 = 85,331.49/x
  3. Step 3: Cross multiply
    351,570.97x = 527,352.61 × 85,331.49
  4. Step 4: Simplify right side
    351,570.97x = 44,999,782,149.11
  5. Step 5: Solve for x
    x = 44,999,782,149.11/351,570.97
  6. Step 6: Final answer
    x = 127,996.30

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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.