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Finding the Fourth Proportional to 220,084.56, 330,148.71 and 79,854.12

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Solution

The fourth proportional to 220,084.56, 330,148.71 and 79,854.12 is: 119,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,084.56 : 330,148.71 = 79,854.12 : x
  2. Step 2: Convert to fraction form
    220,084.56/330,148.71 = 79,854.12/x
  3. Step 3: Cross multiply
    220,084.56x = 330,148.71 × 79,854.12
  4. Step 4: Simplify right side
    220,084.56x = 26,363,734,706.19
  5. Step 5: Solve for x
    x = 26,363,734,706.19/220,084.56
  6. Step 6: Final answer
    x = 119,789.12

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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.