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Finding the Fourth Proportional to 151.62, 227.45 and 70.49

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Solution

The fourth proportional to 151.62, 227.45 and 70.49 is: 105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.62 : 227.45 = 70.49 : x
  2. Step 2: Convert to fraction form
    151.62/227.45 = 70.49/x
  3. Step 3: Cross multiply
    151.62x = 227.45 × 70.49
  4. Step 4: Simplify right side
    151.62x = 16,031.46
  5. Step 5: Solve for x
    x = 16,031.46/151.62
  6. Step 6: Final answer
    x = 105.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.