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Finding the Fourth Proportional to 731.59, 1,097.94 and 361.96

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Solution

The fourth proportional to 731.59, 1,097.94 and 361.96 is: 543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.59 : 1,097.94 = 361.96 : x
  2. Step 2: Convert to fraction form
    731.59/1,097.94 = 361.96/x
  3. Step 3: Cross multiply
    731.59x = 1,097.94 × 361.96
  4. Step 4: Simplify right side
    731.59x = 397,410.36
  5. Step 5: Solve for x
    x = 397,410.36/731.59
  6. Step 6: Final answer
    x = 543.21

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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.