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Finding the Fourth Proportional to 240.60, 358.01 and 239.79

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Solution

The fourth proportional to 240.60, 358.01 and 239.79 is: 356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.60 : 358.01 = 239.79 : x
  2. Step 2: Convert to fraction form
    240.60/358.01 = 239.79/x
  3. Step 3: Cross multiply
    240.60x = 358.01 × 239.79
  4. Step 4: Simplify right side
    240.60x = 85,847.22
  5. Step 5: Solve for x
    x = 85,847.22/240.60
  6. Step 6: Final answer
    x = 356.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.