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Finding the Fourth Proportional to 327,054.78, 490,487.40 and 127,330.65

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Solution

The fourth proportional to 327,054.78, 490,487.40 and 127,330.65 is: 190,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,054.78 : 490,487.40 = 127,330.65 : x
  2. Step 2: Convert to fraction form
    327,054.78/490,487.40 = 127,330.65/x
  3. Step 3: Cross multiply
    327,054.78x = 490,487.40 × 127,330.65
  4. Step 4: Simplify right side
    327,054.78x = 62,454,079,458.81
  5. Step 5: Solve for x
    x = 62,454,079,458.81/327,054.78
  6. Step 6: Final answer
    x = 190,959.08

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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.