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Finding the Fourth Proportional to 327,061.80, 490,592.70 and 102,439.80

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Solution

The fourth proportional to 327,061.80, 490,592.70 and 102,439.80 is: 153,659.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,061.80 : 490,592.70 = 102,439.80 : x
  2. Step 2: Convert to fraction form
    327,061.80/490,592.70 = 102,439.80/x
  3. Step 3: Cross multiply
    327,061.80x = 490,592.70 × 102,439.80
  4. Step 4: Simplify right side
    327,061.80x = 50,256,218,069.46
  5. Step 5: Solve for x
    x = 50,256,218,069.46/327,061.80
  6. Step 6: Final answer
    x = 153,659.70

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1.5x scale

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.