Home / 220,251.38-330,401.06-70,456.46

Finding the Fourth Proportional to 220,251.38, 330,401.06 and 70,456.46

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Solution

The fourth proportional to 220,251.38, 330,401.06 and 70,456.46 is: 105,692.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,251.38 : 330,401.06 = 70,456.46 : x
  2. Step 2: Convert to fraction form
    220,251.38/330,401.06 = 70,456.46/x
  3. Step 3: Cross multiply
    220,251.38x = 330,401.06 × 70,456.46
  4. Step 4: Simplify right side
    220,251.38x = 23,278,890,069.99
  5. Step 5: Solve for x
    x = 23,278,890,069.99/220,251.38
  6. Step 6: Final answer
    x = 105,692.37

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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.