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Finding the Fourth Proportional to 361.84, 500.13 and 288.04

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Solution

The fourth proportional to 361.84, 500.13 and 288.04 is: 398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.84 : 500.13 = 288.04 : x
  2. Step 2: Convert to fraction form
    361.84/500.13 = 288.04/x
  3. Step 3: Cross multiply
    361.84x = 500.13 × 288.04
  4. Step 4: Simplify right side
    361.84x = 144,057.45
  5. Step 5: Solve for x
    x = 144,057.45/361.84
  6. Step 6: Final answer
    x = 398.12

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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.