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Finding the Fourth Proportional to 371,844.96, 513,001.17 and 275,279.97

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Solution

The fourth proportional to 371,844.96, 513,001.17 and 275,279.97 is: 379,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,844.96 : 513,001.17 = 275,279.97 : x
  2. Step 2: Convert to fraction form
    371,844.96/513,001.17 = 275,279.97/x
  3. Step 3: Cross multiply
    371,844.96x = 513,001.17 × 275,279.97
  4. Step 4: Simplify right side
    371,844.96x = 141,218,946,687.57
  5. Step 5: Solve for x
    x = 141,218,946,687.57/371,844.96
  6. Step 6: Final answer
    x = 379,779.11

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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.