Home / 418,305.25-627,556.29-137,822.50

Finding the Fourth Proportional to 418,305.25, 627,556.29 and 137,822.50

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Solution

The fourth proportional to 418,305.25, 627,556.29 and 137,822.50 is: 206,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,305.25 : 627,556.29 = 137,822.50 : x
  2. Step 2: Convert to fraction form
    418,305.25/627,556.29 = 137,822.50/x
  3. Step 3: Cross multiply
    418,305.25x = 627,556.29 × 137,822.50
  4. Step 4: Simplify right side
    418,305.25x = 86,491,376,778.53
  5. Step 5: Solve for x
    x = 86,491,376,778.53/418,305.25
  6. Step 6: Final answer
    x = 206,766.18

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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.