Home / 220,966.16-331,488.20-80,920.40

Finding the Fourth Proportional to 220,966.16, 331,488.20 and 80,920.40

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Solution

The fourth proportional to 220,966.16, 331,488.20 and 80,920.40 is: 121,394.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,966.16 : 331,488.20 = 80,920.40 : x
  2. Step 2: Convert to fraction form
    220,966.16/331,488.20 = 80,920.40/x
  3. Step 3: Cross multiply
    220,966.16x = 331,488.20 × 80,920.40
  4. Step 4: Simplify right side
    220,966.16x = 26,824,157,739.28
  5. Step 5: Solve for x
    x = 26,824,157,739.28/220,966.16
  6. Step 6: Final answer
    x = 121,394.87

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1.5x scale

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.