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Finding the Fourth Proportional to 439,491.38, 606,498.10 and 238,287.38

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Solution

The fourth proportional to 439,491.38, 606,498.10 and 238,287.38 is: 328,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,491.38 : 606,498.10 = 238,287.38 : x
  2. Step 2: Convert to fraction form
    439,491.38/606,498.10 = 238,287.38/x
  3. Step 3: Cross multiply
    439,491.38x = 606,498.10 × 238,287.38
  4. Step 4: Simplify right side
    439,491.38x = 144,520,839,595.77
  5. Step 5: Solve for x
    x = 144,520,839,595.77/439,491.38
  6. Step 6: Final answer
    x = 328,836.58

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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.