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Finding the Fourth Proportional to 730.59, 1,095.67 and 243.98

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Solution

The fourth proportional to 730.59, 1,095.67 and 243.98 is: 365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.59 : 1,095.67 = 243.98 : x
  2. Step 2: Convert to fraction form
    730.59/1,095.67 = 243.98/x
  3. Step 3: Cross multiply
    730.59x = 1,095.67 × 243.98
  4. Step 4: Simplify right side
    730.59x = 267,321.57
  5. Step 5: Solve for x
    x = 267,321.57/730.59
  6. Step 6: Final answer
    x = 365.90

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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.