Home / 281,743.20-421,837.20-219,535.20

Finding the Fourth Proportional to 281,743.20, 421,837.20 and 219,535.20

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Solution

The fourth proportional to 281,743.20, 421,837.20 and 219,535.20 is: 328,696.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,743.20 : 421,837.20 = 219,535.20 : x
  2. Step 2: Convert to fraction form
    281,743.20/421,837.20 = 219,535.20/x
  3. Step 3: Cross multiply
    281,743.20x = 421,837.20 × 219,535.20
  4. Step 4: Simplify right side
    281,743.20x = 92,608,114,069.44
  5. Step 5: Solve for x
    x = 92,608,114,069.44/281,743.20
  6. Step 6: Final answer
    x = 328,696.89

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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.