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Finding the Fourth Proportional to 265.66, 366.18 and 203.38

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Solution

The fourth proportional to 265.66, 366.18 and 203.38 is: 280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.66 : 366.18 = 203.38 : x
  2. Step 2: Convert to fraction form
    265.66/366.18 = 203.38/x
  3. Step 3: Cross multiply
    265.66x = 366.18 × 203.38
  4. Step 4: Simplify right side
    265.66x = 74,473.69
  5. Step 5: Solve for x
    x = 74,473.69/265.66
  6. Step 6: Final answer
    x = 280.33

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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.