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Finding the Fourth Proportional to 731.99, 1,097.40 and 366.59

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Solution

The fourth proportional to 731.99, 1,097.40 and 366.59 is: 549.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.99 : 1,097.40 = 366.59 : x
  2. Step 2: Convert to fraction form
    731.99/1,097.40 = 366.59/x
  3. Step 3: Cross multiply
    731.99x = 1,097.40 × 366.59
  4. Step 4: Simplify right side
    731.99x = 402,295.87
  5. Step 5: Solve for x
    x = 402,295.87/731.99
  6. Step 6: Final answer
    x = 549.59

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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.