Home / 327,026.25-490,539.60-90,369.15

Finding the Fourth Proportional to 327,026.25, 490,539.60 and 90,369.15

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Solution

The fourth proportional to 327,026.25, 490,539.60 and 90,369.15 is: 135,553.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,026.25 : 490,539.60 = 90,369.15 : x
  2. Step 2: Convert to fraction form
    327,026.25/490,539.60 = 90,369.15/x
  3. Step 3: Cross multiply
    327,026.25x = 490,539.60 × 90,369.15
  4. Step 4: Simplify right side
    327,026.25x = 44,329,646,693.34
  5. Step 5: Solve for x
    x = 44,329,646,693.34/327,026.25
  6. Step 6: Final answer
    x = 135,553.79

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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.