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Finding the Fourth Proportional to 218,630.20, 327,945.44 and 168,783.12

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Solution

The fourth proportional to 218,630.20, 327,945.44 and 168,783.12 is: 253,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,630.20 : 327,945.44 = 168,783.12 : x
  2. Step 2: Convert to fraction form
    218,630.20/327,945.44 = 168,783.12/x
  3. Step 3: Cross multiply
    218,630.20x = 327,945.44 × 168,783.12
  4. Step 4: Simplify right side
    218,630.20x = 55,351,654,552.97
  5. Step 5: Solve for x
    x = 55,351,654,552.97/218,630.20
  6. Step 6: Final answer
    x = 253,174.79

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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.