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Finding the Fourth Proportional to 180.15, 248.64 and 150.61

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Solution

The fourth proportional to 180.15, 248.64 and 150.61 is: 207.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.15 : 248.64 = 150.61 : x
  2. Step 2: Convert to fraction form
    180.15/248.64 = 150.61/x
  3. Step 3: Cross multiply
    180.15x = 248.64 × 150.61
  4. Step 4: Simplify right side
    180.15x = 37,446.43
  5. Step 5: Solve for x
    x = 37,446.43/180.15
  6. Step 6: Final answer
    x = 207.87

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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.