Home / 327,155.78-490,532.70-127,243.14

Finding the Fourth Proportional to 327,155.78, 490,532.70 and 127,243.14

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Solution

The fourth proportional to 327,155.78, 490,532.70 and 127,243.14 is: 190,786.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,155.78 : 490,532.70 = 127,243.14 : x
  2. Step 2: Convert to fraction form
    327,155.78/490,532.70 = 127,243.14/x
  3. Step 3: Cross multiply
    327,155.78x = 490,532.70 × 127,243.14
  4. Step 4: Simplify right side
    327,155.78x = 62,416,921,020.68
  5. Step 5: Solve for x
    x = 62,416,921,020.68/327,155.78
  6. Step 6: Final answer
    x = 190,786.55

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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.