Home / 253,072.36-379,609.06-75,565.43

Finding the Fourth Proportional to 253,072.36, 379,609.06 and 75,565.43

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Solution

The fourth proportional to 253,072.36, 379,609.06 and 75,565.43 is: 113,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,072.36 : 379,609.06 = 75,565.43 : x
  2. Step 2: Convert to fraction form
    253,072.36/379,609.06 = 75,565.43/x
  3. Step 3: Cross multiply
    253,072.36x = 379,609.06 × 75,565.43
  4. Step 4: Simplify right side
    253,072.36x = 28,685,321,850.80
  5. Step 5: Solve for x
    x = 28,685,321,850.80/253,072.36
  6. Step 6: Final answer
    x = 113,348.30

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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.