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Finding the Fourth Proportional to 220,151.70, 330,199.98 and 70,379.56

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Solution

The fourth proportional to 220,151.70, 330,199.98 and 70,379.56 is: 105,560.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,151.70 : 330,199.98 = 70,379.56 : x
  2. Step 2: Convert to fraction form
    220,151.70/330,199.98 = 70,379.56/x
  3. Step 3: Cross multiply
    220,151.70x = 330,199.98 × 70,379.56
  4. Step 4: Simplify right side
    220,151.70x = 23,239,330,129.91
  5. Step 5: Solve for x
    x = 23,239,330,129.91/220,151.70
  6. Step 6: Final answer
    x = 105,560.53

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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.