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Finding the Fourth Proportional to 361.85, 499.97 and 283.34

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Solution

The fourth proportional to 361.85, 499.97 and 283.34 is: 391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.85 : 499.97 = 283.34 : x
  2. Step 2: Convert to fraction form
    361.85/499.97 = 283.34/x
  3. Step 3: Cross multiply
    361.85x = 499.97 × 283.34
  4. Step 4: Simplify right side
    361.85x = 141,663.46
  5. Step 5: Solve for x
    x = 141,663.46/361.85
  6. Step 6: Final answer
    x = 391.50

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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.