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Finding the Fourth Proportional to 151.86, 225.96 and 148.62

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Solution

The fourth proportional to 151.86, 225.96 and 148.62 is: 221.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.86 : 225.96 = 148.62 : x
  2. Step 2: Convert to fraction form
    151.86/225.96 = 148.62/x
  3. Step 3: Cross multiply
    151.86x = 225.96 × 148.62
  4. Step 4: Simplify right side
    151.86x = 33,582.18
  5. Step 5: Solve for x
    x = 33,582.18/151.86
  6. Step 6: Final answer
    x = 221.14

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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.