Home / 399,144.38-550,819.24-272,042.01

Finding the Fourth Proportional to 399,144.38, 550,819.24 and 272,042.01

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Solution

The fourth proportional to 399,144.38, 550,819.24 and 272,042.01 is: 375,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,144.38 : 550,819.24 = 272,042.01 : x
  2. Step 2: Convert to fraction form
    399,144.38/550,819.24 = 272,042.01/x
  3. Step 3: Cross multiply
    399,144.38x = 550,819.24 × 272,042.01
  4. Step 4: Simplify right side
    399,144.38x = 149,845,972,516.17
  5. Step 5: Solve for x
    x = 149,845,972,516.17/399,144.38
  6. Step 6: Final answer
    x = 375,417.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.