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Finding the Fourth Proportional to 731.44, 1,097.57 and 298.57

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Solution

The fourth proportional to 731.44, 1,097.57 and 298.57 is: 448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.44 : 1,097.57 = 298.57 : x
  2. Step 2: Convert to fraction form
    731.44/1,097.57 = 298.57/x
  3. Step 3: Cross multiply
    731.44x = 1,097.57 × 298.57
  4. Step 4: Simplify right side
    731.44x = 327,694.49
  5. Step 5: Solve for x
    x = 327,694.49/731.44
  6. Step 6: Final answer
    x = 448.01

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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.