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Finding the Fourth Proportional to 220,584.74, 330,715.80 and 70,739.73

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Solution

The fourth proportional to 220,584.74, 330,715.80 and 70,739.73 is: 106,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,584.74 : 330,715.80 = 70,739.73 : x
  2. Step 2: Convert to fraction form
    220,584.74/330,715.80 = 70,739.73/x
  3. Step 3: Cross multiply
    220,584.74x = 330,715.80 × 70,739.73
  4. Step 4: Simplify right side
    220,584.74x = 23,394,746,398.73
  5. Step 5: Solve for x
    x = 23,394,746,398.73/220,584.74
  6. Step 6: Final answer
    x = 106,057.87

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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.