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Finding the Fourth Proportional to 437,382.30, 656,128.98 and 171,108.66

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Solution

The fourth proportional to 437,382.30, 656,128.98 and 171,108.66 is: 256,684.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,382.30 : 656,128.98 = 171,108.66 : x
  2. Step 2: Convert to fraction form
    437,382.30/656,128.98 = 171,108.66/x
  3. Step 3: Cross multiply
    437,382.30x = 656,128.98 × 171,108.66
  4. Step 4: Simplify right side
    437,382.30x = 112,269,350,554.97
  5. Step 5: Solve for x
    x = 112,269,350,554.97/437,382.30
  6. Step 6: Final answer
    x = 256,684.71

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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.