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Finding the Fourth Proportional to 250.46, 375.54 and 77.07

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Solution

The fourth proportional to 250.46, 375.54 and 77.07 is: 115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.46 : 375.54 = 77.07 : x
  2. Step 2: Convert to fraction form
    250.46/375.54 = 77.07/x
  3. Step 3: Cross multiply
    250.46x = 375.54 × 77.07
  4. Step 4: Simplify right side
    250.46x = 28,942.87
  5. Step 5: Solve for x
    x = 28,942.87/250.46
  6. Step 6: Final answer
    x = 115.56

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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.