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Finding the Fourth Proportional to 487,151.71, 672,265.22 and 269,366.00

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Solution

The fourth proportional to 487,151.71, 672,265.22 and 269,366.00 is: 371,722.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,151.71 : 672,265.22 = 269,366.00 : x
  2. Step 2: Convert to fraction form
    487,151.71/672,265.22 = 269,366.00/x
  3. Step 3: Cross multiply
    487,151.71x = 672,265.22 × 269,366.00
  4. Step 4: Simplify right side
    487,151.71x = 181,085,388,542.36
  5. Step 5: Solve for x
    x = 181,085,388,542.36/487,151.71
  6. Step 6: Final answer
    x = 371,722.78

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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.