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Finding the Fourth Proportional to 240.76, 332.27 and 153.55

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Solution

The fourth proportional to 240.76, 332.27 and 153.55 is: 211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.76 : 332.27 = 153.55 : x
  2. Step 2: Convert to fraction form
    240.76/332.27 = 153.55/x
  3. Step 3: Cross multiply
    240.76x = 332.27 × 153.55
  4. Step 4: Simplify right side
    240.76x = 51,020.06
  5. Step 5: Solve for x
    x = 51,020.06/240.76
  6. Step 6: Final answer
    x = 211.91

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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.