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Finding the Fourth Proportional to 220,098.12, 330,169.02 and 79,867.68

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Solution

The fourth proportional to 220,098.12, 330,169.02 and 79,867.68 is: 119,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,098.12 : 330,169.02 = 79,867.68 : x
  2. Step 2: Convert to fraction form
    220,098.12/330,169.02 = 79,867.68/x
  3. Step 3: Cross multiply
    220,098.12x = 330,169.02 × 79,867.68
  4. Step 4: Simplify right side
    220,098.12x = 26,369,833,635.27
  5. Step 5: Solve for x
    x = 26,369,833,635.27/220,098.12
  6. Step 6: Final answer
    x = 119,809.45

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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.