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Finding the Fourth Proportional to 151.37, 228.09 and 124.91

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Solution

The fourth proportional to 151.37, 228.09 and 124.91 is: 188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.37 : 228.09 = 124.91 : x
  2. Step 2: Convert to fraction form
    151.37/228.09 = 124.91/x
  3. Step 3: Cross multiply
    151.37x = 228.09 × 124.91
  4. Step 4: Simplify right side
    151.37x = 28,489.58
  5. Step 5: Solve for x
    x = 28,489.58/151.37
  6. Step 6: Final answer
    x = 188.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.