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Finding the Fourth Proportional to 218,055.68, 300,920.39 and 119,942.80

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Solution

The fourth proportional to 218,055.68, 300,920.39 and 119,942.80 is: 165,523.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,055.68 : 300,920.39 = 119,942.80 : x
  2. Step 2: Convert to fraction form
    218,055.68/300,920.39 = 119,942.80/x
  3. Step 3: Cross multiply
    218,055.68x = 300,920.39 × 119,942.80
  4. Step 4: Simplify right side
    218,055.68x = 36,093,234,453.55
  5. Step 5: Solve for x
    x = 36,093,234,453.55/218,055.68
  6. Step 6: Final answer
    x = 165,523.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.