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Finding the Fourth Proportional to 276.92, 382.05 and 202.33

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Solution

The fourth proportional to 276.92, 382.05 and 202.33 is: 279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.92 : 382.05 = 202.33 : x
  2. Step 2: Convert to fraction form
    276.92/382.05 = 202.33/x
  3. Step 3: Cross multiply
    276.92x = 382.05 × 202.33
  4. Step 4: Simplify right side
    276.92x = 77,300.65
  5. Step 5: Solve for x
    x = 77,300.65/276.92
  6. Step 6: Final answer
    x = 279.15

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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.