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Finding the Fourth Proportional to 240.32, 359.68 and 163.28

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Solution

The fourth proportional to 240.32, 359.68 and 163.28 is: 244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.32 : 359.68 = 163.28 : x
  2. Step 2: Convert to fraction form
    240.32/359.68 = 163.28/x
  3. Step 3: Cross multiply
    240.32x = 359.68 × 163.28
  4. Step 4: Simplify right side
    240.32x = 58,728.55
  5. Step 5: Solve for x
    x = 58,728.55/240.32
  6. Step 6: Final answer
    x = 244.38

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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.