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Finding the Fourth Proportional to 240.76, 360.66 and 158.42

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Solution

The fourth proportional to 240.76, 360.66 and 158.42 is: 237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.76 : 360.66 = 158.42 : x
  2. Step 2: Convert to fraction form
    240.76/360.66 = 158.42/x
  3. Step 3: Cross multiply
    240.76x = 360.66 × 158.42
  4. Step 4: Simplify right side
    240.76x = 57,137.25
  5. Step 5: Solve for x
    x = 57,137.25/240.76
  6. Step 6: Final answer
    x = 237.32

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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.