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Finding the Fourth Proportional to 151.14, 207.90 and 134.22

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Solution

The fourth proportional to 151.14, 207.90 and 134.22 is: 184.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.14 : 207.90 = 134.22 : x
  2. Step 2: Convert to fraction form
    151.14/207.90 = 134.22/x
  3. Step 3: Cross multiply
    151.14x = 207.90 × 134.22
  4. Step 4: Simplify right side
    151.14x = 27,904.34
  5. Step 5: Solve for x
    x = 27,904.34/151.14
  6. Step 6: Final answer
    x = 184.63

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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.