Home / 318,105.45-438,974.41-174,864.47

Finding the Fourth Proportional to 318,105.45, 438,974.41 and 174,864.47

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Solution

The fourth proportional to 318,105.45, 438,974.41 and 174,864.47 is: 241,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,105.45 : 438,974.41 = 174,864.47 : x
  2. Step 2: Convert to fraction form
    318,105.45/438,974.41 = 174,864.47/x
  3. Step 3: Cross multiply
    318,105.45x = 438,974.41 × 174,864.47
  4. Step 4: Simplify right side
    318,105.45x = 76,761,028,205.09
  5. Step 5: Solve for x
    x = 76,761,028,205.09/318,105.45
  6. Step 6: Final answer
    x = 241,306.86

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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.