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Finding the Fourth Proportional to 361.64, 502.19 and 358.76

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Solution

The fourth proportional to 361.64, 502.19 and 358.76 is: 498.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.64 : 502.19 = 358.76 : x
  2. Step 2: Convert to fraction form
    361.64/502.19 = 358.76/x
  3. Step 3: Cross multiply
    361.64x = 502.19 × 358.76
  4. Step 4: Simplify right side
    361.64x = 180,165.68
  5. Step 5: Solve for x
    x = 180,165.68/361.64
  6. Step 6: Final answer
    x = 498.19

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.