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Finding the Fourth Proportional to 200.23, 276.35 and 126.59

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Solution

The fourth proportional to 200.23, 276.35 and 126.59 is: 174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200.23 : 276.35 = 126.59 : x
  2. Step 2: Convert to fraction form
    200.23/276.35 = 126.59/x
  3. Step 3: Cross multiply
    200.23x = 276.35 × 126.59
  4. Step 4: Simplify right side
    200.23x = 34,981.13
  5. Step 5: Solve for x
    x = 34,981.13/200.23
  6. Step 6: Final answer
    x = 174.71

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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.