Home / 220,117.13-330,223.05-68,311.20

Finding the Fourth Proportional to 220,117.13, 330,223.05 and 68,311.20

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Solution

The fourth proportional to 220,117.13, 330,223.05 and 68,311.20 is: 102,481.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,117.13 : 330,223.05 = 68,311.20 : x
  2. Step 2: Convert to fraction form
    220,117.13/330,223.05 = 68,311.20/x
  3. Step 3: Cross multiply
    220,117.13x = 330,223.05 × 68,311.20
  4. Step 4: Simplify right side
    220,117.13x = 22,557,932,813.16
  5. Step 5: Solve for x
    x = 22,557,932,813.16/220,117.13
  6. Step 6: Final answer
    x = 102,481.50

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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.