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Finding the Fourth Proportional to 220,165.80, 329,859.90 and 180,508.20

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Solution

The fourth proportional to 220,165.80, 329,859.90 and 180,508.20 is: 270,443.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,165.80 : 329,859.90 = 180,508.20 : x
  2. Step 2: Convert to fraction form
    220,165.80/329,859.90 = 180,508.20/x
  3. Step 3: Cross multiply
    220,165.80x = 329,859.90 × 180,508.20
  4. Step 4: Simplify right side
    220,165.80x = 59,542,416,801.18
  5. Step 5: Solve for x
    x = 59,542,416,801.18/220,165.80
  6. Step 6: Final answer
    x = 270,443.53

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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.