Home / 220,945.88-304,905.32-120,343.88

Finding the Fourth Proportional to 220,945.88, 304,905.32 and 120,343.88

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Solution

The fourth proportional to 220,945.88, 304,905.32 and 120,343.88 is: 166,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,945.88 : 304,905.32 = 120,343.88 : x
  2. Step 2: Convert to fraction form
    220,945.88/304,905.32 = 120,343.88/x
  3. Step 3: Cross multiply
    220,945.88x = 304,905.32 × 120,343.88
  4. Step 4: Simplify right side
    220,945.88x = 36,693,487,115.20
  5. Step 5: Solve for x
    x = 36,693,487,115.20/220,945.88
  6. Step 6: Final answer
    x = 166,074.55

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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.