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Finding the Fourth Proportional to 151.95, 229.02 and 145.77

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Solution

The fourth proportional to 151.95, 229.02 and 145.77 is: 219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.95 : 229.02 = 145.77 : x
  2. Step 2: Convert to fraction form
    151.95/229.02 = 145.77/x
  3. Step 3: Cross multiply
    151.95x = 229.02 × 145.77
  4. Step 4: Simplify right side
    151.95x = 33,384.25
  5. Step 5: Solve for x
    x = 33,384.25/151.95
  6. Step 6: Final answer
    x = 219.71

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.