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Finding the Fourth Proportional to 439,806.97, 606,934.79 and 238,602.97

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Solution

The fourth proportional to 439,806.97, 606,934.79 and 238,602.97 is: 329,272.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,806.97 : 606,934.79 = 238,602.97 : x
  2. Step 2: Convert to fraction form
    439,806.97/606,934.79 = 238,602.97/x
  3. Step 3: Cross multiply
    439,806.97x = 606,934.79 × 238,602.97
  4. Step 4: Simplify right side
    439,806.97x = 144,816,443,490.33
  5. Step 5: Solve for x
    x = 144,816,443,490.33/439,806.97
  6. Step 6: Final answer
    x = 329,272.73

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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.