Home / 371,729.38-557,874.48-172,189.76

Finding the Fourth Proportional to 371,729.38, 557,874.48 and 172,189.76

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Solution

The fourth proportional to 371,729.38, 557,874.48 and 172,189.76 is: 258,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,729.38 : 557,874.48 = 172,189.76 : x
  2. Step 2: Convert to fraction form
    371,729.38/557,874.48 = 172,189.76/x
  3. Step 3: Cross multiply
    371,729.38x = 557,874.48 × 172,189.76
  4. Step 4: Simplify right side
    371,729.38x = 96,060,272,821.32
  5. Step 5: Solve for x
    x = 96,060,272,821.32/371,729.38
  6. Step 6: Final answer
    x = 258,414.53

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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.