Home / 219,832.38-303,351.48-129,191.76

Finding the Fourth Proportional to 219,832.38, 303,351.48 and 129,191.76

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Solution

The fourth proportional to 219,832.38, 303,351.48 and 129,191.76 is: 178,274.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,832.38 : 303,351.48 = 129,191.76 : x
  2. Step 2: Convert to fraction form
    219,832.38/303,351.48 = 129,191.76/x
  3. Step 3: Cross multiply
    219,832.38x = 303,351.48 × 129,191.76
  4. Step 4: Simplify right side
    219,832.38x = 39,190,511,599.80
  5. Step 5: Solve for x
    x = 39,190,511,599.80/219,832.38
  6. Step 6: Final answer
    x = 178,274.52

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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.