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Finding the Fourth Proportional to 151.61, 226.53 and 144.45

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Solution

The fourth proportional to 151.61, 226.53 and 144.45 is: 215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.61 : 226.53 = 144.45 : x
  2. Step 2: Convert to fraction form
    151.61/226.53 = 144.45/x
  3. Step 3: Cross multiply
    151.61x = 226.53 × 144.45
  4. Step 4: Simplify right side
    151.61x = 32,722.26
  5. Step 5: Solve for x
    x = 32,722.26/151.61
  6. Step 6: Final answer
    x = 215.84

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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.