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Finding the Fourth Proportional to 151.24, 225.34 and 135.07

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Solution

The fourth proportional to 151.24, 225.34 and 135.07 is: 201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.24 : 225.34 = 135.07 : x
  2. Step 2: Convert to fraction form
    151.24/225.34 = 135.07/x
  3. Step 3: Cross multiply
    151.24x = 225.34 × 135.07
  4. Step 4: Simplify right side
    151.24x = 30,436.67
  5. Step 5: Solve for x
    x = 30,436.67/151.24
  6. Step 6: Final answer
    x = 201.25

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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.