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Finding the Fourth Proportional to 361.52, 499.10 and 277.34

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Solution

The fourth proportional to 361.52, 499.10 and 277.34 is: 382.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.52 : 499.10 = 277.34 : x
  2. Step 2: Convert to fraction form
    361.52/499.10 = 277.34/x
  3. Step 3: Cross multiply
    361.52x = 499.10 × 277.34
  4. Step 4: Simplify right side
    361.52x = 138,422.34
  5. Step 5: Solve for x
    x = 138,422.34/361.52
  6. Step 6: Final answer
    x = 382.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.