Home / 218,769.20-328,164.23-106,315.44

Finding the Fourth Proportional to 218,769.20, 328,164.23 and 106,315.44

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Solution

The fourth proportional to 218,769.20, 328,164.23 and 106,315.44 is: 159,478.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,769.20 : 328,164.23 = 106,315.44 : x
  2. Step 2: Convert to fraction form
    218,769.20/328,164.23 = 106,315.44/x
  3. Step 3: Cross multiply
    218,769.20x = 328,164.23 × 106,315.44
  4. Step 4: Simplify right side
    218,769.20x = 34,888,924,504.71
  5. Step 5: Solve for x
    x = 34,888,924,504.71/218,769.20
  6. Step 6: Final answer
    x = 159,478.23

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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.