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Finding the Fourth Proportional to 437,731.27, 656,768.21 and 171,445.79

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Solution

The fourth proportional to 437,731.27, 656,768.21 and 171,445.79 is: 257,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,731.27 : 656,768.21 = 171,445.79 : x
  2. Step 2: Convert to fraction form
    437,731.27/656,768.21 = 171,445.79/x
  3. Step 3: Cross multiply
    437,731.27x = 656,768.21 × 171,445.79
  4. Step 4: Simplify right side
    437,731.27x = 112,600,144,610.34
  5. Step 5: Solve for x
    x = 112,600,144,610.34/437,731.27
  6. Step 6: Final answer
    x = 257,235.78

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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.