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Finding the Fourth Proportional to 151.37, 226.18 and 127.07

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Solution

The fourth proportional to 151.37, 226.18 and 127.07 is: 189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.37 : 226.18 = 127.07 : x
  2. Step 2: Convert to fraction form
    151.37/226.18 = 127.07/x
  3. Step 3: Cross multiply
    151.37x = 226.18 × 127.07
  4. Step 4: Simplify right side
    151.37x = 28,739.56
  5. Step 5: Solve for x
    x = 28,739.56/151.37
  6. Step 6: Final answer
    x = 189.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.