Home / 220,805.20-304,709.32-120,202.96

Finding the Fourth Proportional to 220,805.20, 304,709.32 and 120,202.96

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Solution

The fourth proportional to 220,805.20, 304,709.32 and 120,202.96 is: 165,879.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,805.20 : 304,709.32 = 120,202.96 : x
  2. Step 2: Convert to fraction form
    220,805.20/304,709.32 = 120,202.96/x
  3. Step 3: Cross multiply
    220,805.20x = 304,709.32 × 120,202.96
  4. Step 4: Simplify right side
    220,805.20x = 36,626,962,203.59
  5. Step 5: Solve for x
    x = 36,626,962,203.59/220,805.20
  6. Step 6: Final answer
    x = 165,879.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.