Home / 327,945.30-491,918.16-253,174.68

Finding the Fourth Proportional to 327,945.30, 491,918.16 and 253,174.68

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Solution

The fourth proportional to 327,945.30, 491,918.16 and 253,174.68 is: 379,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,945.30 : 491,918.16 = 253,174.68 : x
  2. Step 2: Convert to fraction form
    327,945.30/491,918.16 = 253,174.68/x
  3. Step 3: Cross multiply
    327,945.30x = 491,918.16 × 253,174.68
  4. Step 4: Simplify right side
    327,945.30x = 124,541,222,744.19
  5. Step 5: Solve for x
    x = 124,541,222,744.19/327,945.30
  6. Step 6: Final answer
    x = 379,762.18

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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.