Home / 327,208.42-490,823.62-90,531.28

Finding the Fourth Proportional to 327,208.42, 490,823.62 and 90,531.28

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Solution

The fourth proportional to 327,208.42, 490,823.62 and 90,531.28 is: 135,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,208.42 : 490,823.62 = 90,531.28 : x
  2. Step 2: Convert to fraction form
    327,208.42/490,823.62 = 90,531.28/x
  3. Step 3: Cross multiply
    327,208.42x = 490,823.62 × 90,531.28
  4. Step 4: Simplify right side
    327,208.42x = 44,434,890,572.83
  5. Step 5: Solve for x
    x = 44,434,890,572.83/327,208.42
  6. Step 6: Final answer
    x = 135,799.96

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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.