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Finding the Fourth Proportional to 437,047.12, 655,569.77 and 137,553.87

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Solution

The fourth proportional to 437,047.12, 655,569.77 and 137,553.87 is: 206,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,047.12 : 655,569.77 = 137,553.87 : x
  2. Step 2: Convert to fraction form
    437,047.12/655,569.77 = 137,553.87/x
  3. Step 3: Cross multiply
    437,047.12x = 655,569.77 × 137,553.87
  4. Step 4: Simplify right side
    437,047.12x = 90,176,158,230.74
  5. Step 5: Solve for x
    x = 90,176,158,230.74/437,047.12
  6. Step 6: Final answer
    x = 206,330.52

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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.