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Finding the Fourth Proportional to 203,951.70, 281,422.08 and 113,306.22

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Solution

The fourth proportional to 203,951.70, 281,422.08 and 113,306.22 is: 156,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,951.70 : 281,422.08 = 113,306.22 : x
  2. Step 2: Convert to fraction form
    203,951.70/281,422.08 = 113,306.22/x
  3. Step 3: Cross multiply
    203,951.70x = 281,422.08 × 113,306.22
  4. Step 4: Simplify right side
    203,951.70x = 31,886,872,109.34
  5. Step 5: Solve for x
    x = 31,886,872,109.34/203,951.70
  6. Step 6: Final answer
    x = 156,345.21

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1.5x scale

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.