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Finding the Fourth Proportional to 218,859.62, 301,974.85 and 132,816.65

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Solution

The fourth proportional to 218,859.62, 301,974.85 and 132,816.65 is: 183,255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,859.62 : 301,974.85 = 132,816.65 : x
  2. Step 2: Convert to fraction form
    218,859.62/301,974.85 = 132,816.65/x
  3. Step 3: Cross multiply
    218,859.62x = 301,974.85 × 132,816.65
  4. Step 4: Simplify right side
    218,859.62x = 40,107,289,199.38
  5. Step 5: Solve for x
    x = 40,107,289,199.38/218,859.62
  6. Step 6: Final answer
    x = 183,255.77

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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.