Home / 203,424.20-305,136.30-55,680.20

Finding the Fourth Proportional to 203,424.20, 305,136.30 and 55,680.20

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Solution

The fourth proportional to 203,424.20, 305,136.30 and 55,680.20 is: 83,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,424.20 : 305,136.30 = 55,680.20 : x
  2. Step 2: Convert to fraction form
    203,424.20/305,136.30 = 55,680.20/x
  3. Step 3: Cross multiply
    203,424.20x = 305,136.30 × 55,680.20
  4. Step 4: Simplify right side
    203,424.20x = 16,990,050,211.26
  5. Step 5: Solve for x
    x = 16,990,050,211.26/203,424.20
  6. Step 6: Final answer
    x = 83,520.30

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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.