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Finding the Fourth Proportional to 438,862.72, 658,318.66 and 123,295

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Solution

The fourth proportional to 438,862.72, 658,318.66 and 123,295 is: 184,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,862.72 : 658,318.66 = 123,295 : x
  2. Step 2: Convert to fraction form
    438,862.72/658,318.66 = 123,295/x
  3. Step 3: Cross multiply
    438,862.72x = 658,318.66 × 123,295
  4. Step 4: Simplify right side
    438,862.72x = 81,167,399,184.70
  5. Step 5: Solve for x
    x = 81,167,399,184.70/438,862.72
  6. Step 6: Final answer
    x = 184,949.41

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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.