Home / 213,626.20-320,439.30-194,963.80

Finding the Fourth Proportional to 213,626.20, 320,439.30 and 194,963.80

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Solution

The fourth proportional to 213,626.20, 320,439.30 and 194,963.80 is: 292,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,626.20 : 320,439.30 = 194,963.80 : x
  2. Step 2: Convert to fraction form
    213,626.20/320,439.30 = 194,963.80/x
  3. Step 3: Cross multiply
    213,626.20x = 320,439.30 × 194,963.80
  4. Step 4: Simplify right side
    213,626.20x = 62,474,063,597.34
  5. Step 5: Solve for x
    x = 62,474,063,597.34/213,626.20
  6. Step 6: Final answer
    x = 292,445.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.