Home / 220,648.20-330,810.30-87,462.60

Finding the Fourth Proportional to 220,648.20, 330,810.30 and 87,462.60

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Solution

The fourth proportional to 220,648.20, 330,810.30 and 87,462.60 is: 131,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,648.20 : 330,810.30 = 87,462.60 : x
  2. Step 2: Convert to fraction form
    220,648.20/330,810.30 = 87,462.60/x
  3. Step 3: Cross multiply
    220,648.20x = 330,810.30 × 87,462.60
  4. Step 4: Simplify right side
    220,648.20x = 28,933,528,944.78
  5. Step 5: Solve for x
    x = 28,933,528,944.78/220,648.20
  6. Step 6: Final answer
    x = 131,129.68

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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.