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Finding the Fourth Proportional to 240.77, 332.28 and 135.87

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Solution

The fourth proportional to 240.77, 332.28 and 135.87 is: 187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.77 : 332.28 = 135.87 : x
  2. Step 2: Convert to fraction form
    240.77/332.28 = 135.87/x
  3. Step 3: Cross multiply
    240.77x = 332.28 × 135.87
  4. Step 4: Simplify right side
    240.77x = 45,146.88
  5. Step 5: Solve for x
    x = 45,146.88/240.77
  6. Step 6: Final answer
    x = 187.51

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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.