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Finding the Fourth Proportional to 390,244.97, 585,359.12 and 179,882.91

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Solution

The fourth proportional to 390,244.97, 585,359.12 and 179,882.91 is: 269,820.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,244.97 : 585,359.12 = 179,882.91 : x
  2. Step 2: Convert to fraction form
    390,244.97/585,359.12 = 179,882.91/x
  3. Step 3: Cross multiply
    390,244.97x = 585,359.12 × 179,882.91
  4. Step 4: Simplify right side
    390,244.97x = 105,296,098,074.43
  5. Step 5: Solve for x
    x = 105,296,098,074.43/390,244.97
  6. Step 6: Final answer
    x = 269,820.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.