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Finding the Fourth Proportional to 351,410.02, 527,115.02 and 85,170.53

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Solution

The fourth proportional to 351,410.02, 527,115.02 and 85,170.53 is: 127,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,410.02 : 527,115.02 = 85,170.53 : x
  2. Step 2: Convert to fraction form
    351,410.02/527,115.02 = 85,170.53/x
  3. Step 3: Cross multiply
    351,410.02x = 527,115.02 × 85,170.53
  4. Step 4: Simplify right side
    351,410.02x = 44,894,666,516.30
  5. Step 5: Solve for x
    x = 44,894,666,516.30/351,410.02
  6. Step 6: Final answer
    x = 127,755.80

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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.