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Finding the Fourth Proportional to 265.92, 366.48 and 200.40

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Solution

The fourth proportional to 265.92, 366.48 and 200.40 is: 276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.92 : 366.48 = 200.40 : x
  2. Step 2: Convert to fraction form
    265.92/366.48 = 200.40/x
  3. Step 3: Cross multiply
    265.92x = 366.48 × 200.40
  4. Step 4: Simplify right side
    265.92x = 73,442.59
  5. Step 5: Solve for x
    x = 73,442.59/265.92
  6. Step 6: Final answer
    x = 276.18

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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.