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Finding the Fourth Proportional to 220,200.96, 330,302.88 and 53,988.96

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Solution

The fourth proportional to 220,200.96, 330,302.88 and 53,988.96 is: 80,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,200.96 : 330,302.88 = 53,988.96 : x
  2. Step 2: Convert to fraction form
    220,200.96/330,302.88 = 53,988.96/x
  3. Step 3: Cross multiply
    220,200.96x = 330,302.88 × 53,988.96
  4. Step 4: Simplify right side
    220,200.96x = 17,832,708,976.20
  5. Step 5: Solve for x
    x = 17,832,708,976.20/220,200.96
  6. Step 6: Final answer
    x = 80,983.79

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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.