Home / 438,217.61-656,929.66-171,906.62

Finding the Fourth Proportional to 438,217.61, 656,929.66 and 171,906.62

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Solution

The fourth proportional to 438,217.61, 656,929.66 and 171,906.62 is: 257,704.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,217.61 : 656,929.66 = 171,906.62 : x
  2. Step 2: Convert to fraction form
    438,217.61/656,929.66 = 171,906.62/x
  3. Step 3: Cross multiply
    438,217.61x = 656,929.66 × 171,906.62
  4. Step 4: Simplify right side
    438,217.61x = 112,930,557,428.35
  5. Step 5: Solve for x
    x = 112,930,557,428.35/438,217.61
  6. Step 6: Final answer
    x = 257,704.29

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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.