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Finding the Fourth Proportional to 151.03, 208.49 and 95.80

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Solution

The fourth proportional to 151.03, 208.49 and 95.80 is: 132.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.03 : 208.49 = 95.80 : x
  2. Step 2: Convert to fraction form
    151.03/208.49 = 95.80/x
  3. Step 3: Cross multiply
    151.03x = 208.49 × 95.80
  4. Step 4: Simplify right side
    151.03x = 19,973.34
  5. Step 5: Solve for x
    x = 19,973.34/151.03
  6. Step 6: Final answer
    x = 132.25

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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.