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Finding the Fourth Proportional to 151.41, 208.80 and 134.13

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Solution

The fourth proportional to 151.41, 208.80 and 134.13 is: 184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.41 : 208.80 = 134.13 : x
  2. Step 2: Convert to fraction form
    151.41/208.80 = 134.13/x
  3. Step 3: Cross multiply
    151.41x = 208.80 × 134.13
  4. Step 4: Simplify right side
    151.41x = 28,006.34
  5. Step 5: Solve for x
    x = 28,006.34/151.41
  6. Step 6: Final answer
    x = 184.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.