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Finding the Fourth Proportional to 253.43, 380.86 and 150.74

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Solution

The fourth proportional to 253.43, 380.86 and 150.74 is: 226.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.43 : 380.86 = 150.74 : x
  2. Step 2: Convert to fraction form
    253.43/380.86 = 150.74/x
  3. Step 3: Cross multiply
    253.43x = 380.86 × 150.74
  4. Step 4: Simplify right side
    253.43x = 57,409.97
  5. Step 5: Solve for x
    x = 57,409.97/253.43
  6. Step 6: Final answer
    x = 226.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.