Home / 204,778.56-307,306.25-71,660.00

Finding the Fourth Proportional to 204,778.56, 307,306.25 and 71,660.00

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Solution

The fourth proportional to 204,778.56, 307,306.25 and 71,660.00 is: 107,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,778.56 : 307,306.25 = 71,660.00 : x
  2. Step 2: Convert to fraction form
    204,778.56/307,306.25 = 71,660.00/x
  3. Step 3: Cross multiply
    204,778.56x = 307,306.25 × 71,660.00
  4. Step 4: Simplify right side
    204,778.56x = 22,021,563,980.17
  5. Step 5: Solve for x
    x = 22,021,563,980.17/204,778.56
  6. Step 6: Final answer
    x = 107,538.43

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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.