Home / 206,270.26-309,493.60-86,355.22

Finding the Fourth Proportional to 206,270.26, 309,493.60 and 86,355.22

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Solution

The fourth proportional to 206,270.26, 309,493.60 and 86,355.22 is: 129,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,270.26 : 309,493.60 = 86,355.22 : x
  2. Step 2: Convert to fraction form
    206,270.26/309,493.60 = 86,355.22/x
  3. Step 3: Cross multiply
    206,270.26x = 309,493.60 × 86,355.22
  4. Step 4: Simplify right side
    206,270.26x = 26,726,387,916.59
  5. Step 5: Solve for x
    x = 26,726,387,916.59/206,270.26
  6. Step 6: Final answer
    x = 129,569.76

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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.