Home / 321,826.80-482,616.60-153,217.20

Finding the Fourth Proportional to 321,826.80, 482,616.60 and 153,217.20

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Solution

The fourth proportional to 321,826.80, 482,616.60 and 153,217.20 is: 229,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,826.80 : 482,616.60 = 153,217.20 : x
  2. Step 2: Convert to fraction form
    321,826.80/482,616.60 = 153,217.20/x
  3. Step 3: Cross multiply
    321,826.80x = 482,616.60 × 153,217.20
  4. Step 4: Simplify right side
    321,826.80x = 73,945,164,125.52
  5. Step 5: Solve for x
    x = 73,945,164,125.52/321,826.80
  6. Step 6: Final answer
    x = 229,766.96

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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.