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Finding the Fourth Proportional to 248.13, 370.17 and 240.30

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Solution

The fourth proportional to 248.13, 370.17 and 240.30 is: 358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.13 : 370.17 = 240.30 : x
  2. Step 2: Convert to fraction form
    248.13/370.17 = 240.30/x
  3. Step 3: Cross multiply
    248.13x = 370.17 × 240.30
  4. Step 4: Simplify right side
    248.13x = 88,951.85
  5. Step 5: Solve for x
    x = 88,951.85/248.13
  6. Step 6: Final answer
    x = 358.49

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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.