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Finding the Fourth Proportional to 424,164.27, 636,078.93 and 171,397.02

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Solution

The fourth proportional to 424,164.27, 636,078.93 and 171,397.02 is: 257,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,164.27 : 636,078.93 = 171,397.02 : x
  2. Step 2: Convert to fraction form
    424,164.27/636,078.93 = 171,397.02/x
  3. Step 3: Cross multiply
    424,164.27x = 636,078.93 × 171,397.02
  4. Step 4: Simplify right side
    424,164.27x = 109,022,033,086.79
  5. Step 5: Solve for x
    x = 109,022,033,086.79/424,164.27
  6. Step 6: Final answer
    x = 257,027.86

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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.