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Finding the Fourth Proportional to 240.89, 361.54 and 125.38

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Solution

The fourth proportional to 240.89, 361.54 and 125.38 is: 188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.89 : 361.54 = 125.38 : x
  2. Step 2: Convert to fraction form
    240.89/361.54 = 125.38/x
  3. Step 3: Cross multiply
    240.89x = 361.54 × 125.38
  4. Step 4: Simplify right side
    240.89x = 45,327.76
  5. Step 5: Solve for x
    x = 45,327.76/240.89
  6. Step 6: Final answer
    x = 188.17

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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.