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Finding the Fourth Proportional to 240.66, 332.28 and 225.18

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Solution

The fourth proportional to 240.66, 332.28 and 225.18 is: 310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.66 : 332.28 = 225.18 : x
  2. Step 2: Convert to fraction form
    240.66/332.28 = 225.18/x
  3. Step 3: Cross multiply
    240.66x = 332.28 × 225.18
  4. Step 4: Simplify right side
    240.66x = 74,822.81
  5. Step 5: Solve for x
    x = 74,822.81/240.66
  6. Step 6: Final answer
    x = 310.91

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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.