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Finding the Fourth Proportional to 438,849.70, 658,299.15 and 123,282

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Solution

The fourth proportional to 438,849.70, 658,299.15 and 123,282 is: 184,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,849.70 : 658,299.15 = 123,282 : x
  2. Step 2: Convert to fraction form
    438,849.70/658,299.15 = 123,282/x
  3. Step 3: Cross multiply
    438,849.70x = 658,299.15 × 123,282
  4. Step 4: Simplify right side
    438,849.70x = 81,156,435,810.30
  5. Step 5: Solve for x
    x = 81,156,435,810.30/438,849.70
  6. Step 6: Final answer
    x = 184,929.91

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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.