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Finding the Fourth Proportional to 254.70, 380.36 and 250.38

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Solution

The fourth proportional to 254.70, 380.36 and 250.38 is: 373.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.70 : 380.36 = 250.38 : x
  2. Step 2: Convert to fraction form
    254.70/380.36 = 250.38/x
  3. Step 3: Cross multiply
    254.70x = 380.36 × 250.38
  4. Step 4: Simplify right side
    254.70x = 95,233.28
  5. Step 5: Solve for x
    x = 95,233.28/254.70
  6. Step 6: Final answer
    x = 373.90

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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.