Home / 221,309.35-331,882.62-79,116.19

Finding the Fourth Proportional to 221,309.35, 331,882.62 and 79,116.19

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Solution

The fourth proportional to 221,309.35, 331,882.62 and 79,116.19 is: 118,645.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,309.35 : 331,882.62 = 79,116.19 : x
  2. Step 2: Convert to fraction form
    221,309.35/331,882.62 = 79,116.19/x
  3. Step 3: Cross multiply
    221,309.35x = 331,882.62 × 79,116.19
  4. Step 4: Simplify right side
    221,309.35x = 26,257,288,421.62
  5. Step 5: Solve for x
    x = 26,257,288,421.62/221,309.35
  6. Step 6: Final answer
    x = 118,645.18

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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.