Home / 220,613.43-330,854.40-80,339.25

Finding the Fourth Proportional to 220,613.43, 330,854.40 and 80,339.25

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Solution

The fourth proportional to 220,613.43, 330,854.40 and 80,339.25 is: 120,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,613.43 : 330,854.40 = 80,339.25 : x
  2. Step 2: Convert to fraction form
    220,613.43/330,854.40 = 80,339.25/x
  3. Step 3: Cross multiply
    220,613.43x = 330,854.40 × 80,339.25
  4. Step 4: Simplify right side
    220,613.43x = 26,580,594,355.20
  5. Step 5: Solve for x
    x = 26,580,594,355.20/220,613.43
  6. Step 6: Final answer
    x = 120,484.93

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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.