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Finding the Fourth Proportional to 327,527.87, 490,999.61 and 127,801.80

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Solution

The fourth proportional to 327,527.87, 490,999.61 and 127,801.80 is: 191,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,527.87 : 490,999.61 = 127,801.80 : x
  2. Step 2: Convert to fraction form
    327,527.87/490,999.61 = 127,801.80/x
  3. Step 3: Cross multiply
    327,527.87x = 490,999.61 × 127,801.80
  4. Step 4: Simplify right side
    327,527.87x = 62,750,634,097.08
  5. Step 5: Solve for x
    x = 62,750,634,097.08/327,527.87
  6. Step 6: Final answer
    x = 191,588.69

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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.