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Finding the Fourth Proportional to 328,517.20, 492,775.80 and 295,274.80

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Solution

The fourth proportional to 328,517.20, 492,775.80 and 295,274.80 is: 442,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,517.20 : 492,775.80 = 295,274.80 : x
  2. Step 2: Convert to fraction form
    328,517.20/492,775.80 = 295,274.80/x
  3. Step 3: Cross multiply
    328,517.20x = 492,775.80 × 295,274.80
  4. Step 4: Simplify right side
    328,517.20x = 145,504,275,789.84
  5. Step 5: Solve for x
    x = 145,504,275,789.84/328,517.20
  6. Step 6: Final answer
    x = 442,912.20

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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.