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Finding the Fourth Proportional to 250.88, 375.90 and 135.38

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Solution

The fourth proportional to 250.88, 375.90 and 135.38 is: 202.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.88 : 375.90 = 135.38 : x
  2. Step 2: Convert to fraction form
    250.88/375.90 = 135.38/x
  3. Step 3: Cross multiply
    250.88x = 375.90 × 135.38
  4. Step 4: Simplify right side
    250.88x = 50,889.34
  5. Step 5: Solve for x
    x = 50,889.34/250.88
  6. Step 6: Final answer
    x = 202.84

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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.