Home / 220,428.72-304,194.66-119,828.88

Finding the Fourth Proportional to 220,428.72, 304,194.66 and 119,828.88

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Solution

The fourth proportional to 220,428.72, 304,194.66 and 119,828.88 is: 165,365.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,428.72 : 304,194.66 = 119,828.88 : x
  2. Step 2: Convert to fraction form
    220,428.72/304,194.66 = 119,828.88/x
  3. Step 3: Cross multiply
    220,428.72x = 304,194.66 × 119,828.88
  4. Step 4: Simplify right side
    220,428.72x = 36,451,305,409.78
  5. Step 5: Solve for x
    x = 36,451,305,409.78/220,428.72
  6. Step 6: Final answer
    x = 165,365.50

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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.