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Finding the Fourth Proportional to 253,306.91, 379,819.96 and 103,652.12

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Solution

The fourth proportional to 253,306.91, 379,819.96 and 103,652.12 is: 155,420.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,306.91 : 379,819.96 = 103,652.12 : x
  2. Step 2: Convert to fraction form
    253,306.91/379,819.96 = 103,652.12/x
  3. Step 3: Cross multiply
    253,306.91x = 379,819.96 × 103,652.12
  4. Step 4: Simplify right side
    253,306.91x = 39,369,144,072.32
  5. Step 5: Solve for x
    x = 39,369,144,072.32/253,306.91
  6. Step 6: Final answer
    x = 155,420.73

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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.