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Finding the Fourth Proportional to 240.10, 359.61 and 158.74

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Solution

The fourth proportional to 240.10, 359.61 and 158.74 is: 237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.10 : 359.61 = 158.74 : x
  2. Step 2: Convert to fraction form
    240.10/359.61 = 158.74/x
  3. Step 3: Cross multiply
    240.10x = 359.61 × 158.74
  4. Step 4: Simplify right side
    240.10x = 57,084.49
  5. Step 5: Solve for x
    x = 57,084.49/240.10
  6. Step 6: Final answer
    x = 237.75

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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.