Home / 218,402.11-327,698.57-76,349.38

Finding the Fourth Proportional to 218,402.11, 327,698.57 and 76,349.38

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Solution

The fourth proportional to 218,402.11, 327,698.57 and 76,349.38 is: 114,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,402.11 : 327,698.57 = 76,349.38 : x
  2. Step 2: Convert to fraction form
    218,402.11/327,698.57 = 76,349.38/x
  3. Step 3: Cross multiply
    218,402.11x = 327,698.57 × 76,349.38
  4. Step 4: Simplify right side
    218,402.11x = 25,019,582,646.39
  5. Step 5: Solve for x
    x = 25,019,582,646.39/218,402.11
  6. Step 6: Final answer
    x = 114,557.42

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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.