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Finding the Fourth Proportional to 265.96, 366.76 and 243.48

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Solution

The fourth proportional to 265.96, 366.76 and 243.48 is: 335.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.96 : 366.76 = 243.48 : x
  2. Step 2: Convert to fraction form
    265.96/366.76 = 243.48/x
  3. Step 3: Cross multiply
    265.96x = 366.76 × 243.48
  4. Step 4: Simplify right side
    265.96x = 89,298.72
  5. Step 5: Solve for x
    x = 89,298.72/265.96
  6. Step 6: Final answer
    x = 335.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.