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Finding the Fourth Proportional to 150.70, 225.70 and 104.92

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Solution

The fourth proportional to 150.70, 225.70 and 104.92 is: 157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    150.70 : 225.70 = 104.92 : x
  2. Step 2: Convert to fraction form
    150.70/225.70 = 104.92/x
  3. Step 3: Cross multiply
    150.70x = 225.70 × 104.92
  4. Step 4: Simplify right side
    150.70x = 23,680.44
  5. Step 5: Solve for x
    x = 23,680.44/150.70
  6. Step 6: Final answer
    x = 157.14

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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.