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Finding the Fourth Proportional to 240.32, 328.96 and 239.36

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Solution

The fourth proportional to 240.32, 328.96 and 239.36 is: 327.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.32 : 328.96 = 239.36 : x
  2. Step 2: Convert to fraction form
    240.32/328.96 = 239.36/x
  3. Step 3: Cross multiply
    240.32x = 328.96 × 239.36
  4. Step 4: Simplify right side
    240.32x = 78,739.87
  5. Step 5: Solve for x
    x = 78,739.87/240.32
  6. Step 6: Final answer
    x = 327.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.