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Finding the Fourth Proportional to 220,127.40, 330,191.10 and 114,921.90

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Solution

The fourth proportional to 220,127.40, 330,191.10 and 114,921.90 is: 172,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,127.40 : 330,191.10 = 114,921.90 : x
  2. Step 2: Convert to fraction form
    220,127.40/330,191.10 = 114,921.90/x
  3. Step 3: Cross multiply
    220,127.40x = 330,191.10 × 114,921.90
  4. Step 4: Simplify right side
    220,127.40x = 37,946,188,575.09
  5. Step 5: Solve for x
    x = 37,946,188,575.09/220,127.40
  6. Step 6: Final answer
    x = 172,382.85

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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.