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Finding the Fourth Proportional to 151.21, 225.23 and 150.13

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Solution

The fourth proportional to 151.21, 225.23 and 150.13 is: 223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.21 : 225.23 = 150.13 : x
  2. Step 2: Convert to fraction form
    151.21/225.23 = 150.13/x
  3. Step 3: Cross multiply
    151.21x = 225.23 × 150.13
  4. Step 4: Simplify right side
    151.21x = 33,813.78
  5. Step 5: Solve for x
    x = 33,813.78/151.21
  6. Step 6: Final answer
    x = 223.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.