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Finding the Fourth Proportional to 424,195.17, 636,753.84 and 171,649.52

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Solution

The fourth proportional to 424,195.17, 636,753.84 and 171,649.52 is: 257,660.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,195.17 : 636,753.84 = 171,649.52 : x
  2. Step 2: Convert to fraction form
    424,195.17/636,753.84 = 171,649.52/x
  3. Step 3: Cross multiply
    424,195.17x = 636,753.84 × 171,649.52
  4. Step 4: Simplify right side
    424,195.17x = 109,298,490,994.16
  5. Step 5: Solve for x
    x = 109,298,490,994.16/424,195.17
  6. Step 6: Final answer
    x = 257,660.86

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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.