Home / 220,252.08-330,508.80-80,021.64

Finding the Fourth Proportional to 220,252.08, 330,508.80 and 80,021.64

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Solution

The fourth proportional to 220,252.08, 330,508.80 and 80,021.64 is: 120,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,252.08 : 330,508.80 = 80,021.64 : x
  2. Step 2: Convert to fraction form
    220,252.08/330,508.80 = 80,021.64/x
  3. Step 3: Cross multiply
    220,252.08x = 330,508.80 × 80,021.64
  4. Step 4: Simplify right side
    220,252.08x = 26,447,856,210.43
  5. Step 5: Solve for x
    x = 26,447,856,210.43/220,252.08
  6. Step 6: Final answer
    x = 120,079.94

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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.