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Finding the Fourth Proportional to 372,506.31, 514,001.54 and 209,171.27

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Solution

The fourth proportional to 372,506.31, 514,001.54 and 209,171.27 is: 288,624.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,506.31 : 514,001.54 = 209,171.27 : x
  2. Step 2: Convert to fraction form
    372,506.31/514,001.54 = 209,171.27/x
  3. Step 3: Cross multiply
    372,506.31x = 514,001.54 × 209,171.27
  4. Step 4: Simplify right side
    372,506.31x = 107,514,356,711.69
  5. Step 5: Solve for x
    x = 107,514,356,711.69/372,506.31
  6. Step 6: Final answer
    x = 288,624.26

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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.