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Finding the Fourth Proportional to 218,114.40, 326,998.80 and 119,618.40

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Solution

The fourth proportional to 218,114.40, 326,998.80 and 119,618.40 is: 179,332.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,114.40 : 326,998.80 = 119,618.40 : x
  2. Step 2: Convert to fraction form
    218,114.40/326,998.80 = 119,618.40/x
  3. Step 3: Cross multiply
    218,114.40x = 326,998.80 × 119,618.40
  4. Step 4: Simplify right side
    218,114.40x = 39,115,073,257.92
  5. Step 5: Solve for x
    x = 39,115,073,257.92/218,114.40
  6. Step 6: Final answer
    x = 179,332.83

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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.