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Finding the Fourth Proportional to 439.08, 605.97 and 242.59

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Solution

The fourth proportional to 439.08, 605.97 and 242.59 is: 334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.08 : 605.97 = 242.59 : x
  2. Step 2: Convert to fraction form
    439.08/605.97 = 242.59/x
  3. Step 3: Cross multiply
    439.08x = 605.97 × 242.59
  4. Step 4: Simplify right side
    439.08x = 147,001.66
  5. Step 5: Solve for x
    x = 147,001.66/439.08
  6. Step 6: Final answer
    x = 334.80

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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.