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Finding the Fourth Proportional to 151.01, 208.42 and 146.90

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Solution

The fourth proportional to 151.01, 208.42 and 146.90 is: 202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.01 : 208.42 = 146.90 : x
  2. Step 2: Convert to fraction form
    151.01/208.42 = 146.90/x
  3. Step 3: Cross multiply
    151.01x = 208.42 × 146.90
  4. Step 4: Simplify right side
    151.01x = 30,615.49
  5. Step 5: Solve for x
    x = 30,615.49/151.01
  6. Step 6: Final answer
    x = 202.73

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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.