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Finding the Fourth Proportional to 220,084.68, 330,148.90 and 79,854.24

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Solution

The fourth proportional to 220,084.68, 330,148.90 and 79,854.24 is: 119,789.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,084.68 : 330,148.90 = 79,854.24 : x
  2. Step 2: Convert to fraction form
    220,084.68/330,148.90 = 79,854.24/x
  3. Step 3: Cross multiply
    220,084.68x = 330,148.90 × 79,854.24
  4. Step 4: Simplify right side
    220,084.68x = 26,363,789,496.34
  5. Step 5: Solve for x
    x = 26,363,789,496.34/220,084.68
  6. Step 6: Final answer
    x = 119,789.30

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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.