Home / 327,161.32-490,742.09-102,539.18

Finding the Fourth Proportional to 327,161.32, 490,742.09 and 102,539.18

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Solution

The fourth proportional to 327,161.32, 490,742.09 and 102,539.18 is: 153,808.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,161.32 : 490,742.09 = 102,539.18 : x
  2. Step 2: Convert to fraction form
    327,161.32/490,742.09 = 102,539.18/x
  3. Step 3: Cross multiply
    327,161.32x = 490,742.09 × 102,539.18
  4. Step 4: Simplify right side
    327,161.32x = 50,320,290,987.39
  5. Step 5: Solve for x
    x = 50,320,290,987.39/327,161.32
  6. Step 6: Final answer
    x = 153,808.81

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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.