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Finding the Fourth Proportional to 200.22, 276.30 and 126.52

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Solution

The fourth proportional to 200.22, 276.30 and 126.52 is: 174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.22 : 276.30 = 126.52 : x
  2. Step 2: Convert to fraction form
    200.22/276.30 = 126.52/x
  3. Step 3: Cross multiply
    200.22x = 276.30 × 126.52
  4. Step 4: Simplify right side
    200.22x = 34,957.48
  5. Step 5: Solve for x
    x = 34,957.48/200.22
  6. Step 6: Final answer
    x = 174.60

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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.