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Finding the Fourth Proportional to 240.18, 359.91 and 154.50

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Solution

The fourth proportional to 240.18, 359.91 and 154.50 is: 231.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.18 : 359.91 = 154.50 : x
  2. Step 2: Convert to fraction form
    240.18/359.91 = 154.50/x
  3. Step 3: Cross multiply
    240.18x = 359.91 × 154.50
  4. Step 4: Simplify right side
    240.18x = 55,606.10
  5. Step 5: Solve for x
    x = 55,606.10/240.18
  6. Step 6: Final answer
    x = 231.52

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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.