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Finding the Fourth Proportional to 458.12, 686.36 and 241.04

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Solution

The fourth proportional to 458.12, 686.36 and 241.04 is: 361.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.12 : 686.36 = 241.04 : x
  2. Step 2: Convert to fraction form
    458.12/686.36 = 241.04/x
  3. Step 3: Cross multiply
    458.12x = 686.36 × 241.04
  4. Step 4: Simplify right side
    458.12x = 165,440.21
  5. Step 5: Solve for x
    x = 165,440.21/458.12
  6. Step 6: Final answer
    x = 361.13

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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.