Home / 281,723.43-422,021.79-169,342.68

Finding the Fourth Proportional to 281,723.43, 422,021.79 and 169,342.68

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Solution

The fourth proportional to 281,723.43, 422,021.79 and 169,342.68 is: 253,675.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,723.43 : 422,021.79 = 169,342.68 : x
  2. Step 2: Convert to fraction form
    281,723.43/422,021.79 = 169,342.68/x
  3. Step 3: Cross multiply
    281,723.43x = 422,021.79 × 169,342.68
  4. Step 4: Simplify right side
    281,723.43x = 71,466,300,937.00
  5. Step 5: Solve for x
    x = 71,466,300,937.00/281,723.43
  6. Step 6: Final answer
    x = 253,675.39

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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.