Home / 318,110.25-438,982.79-182,139.69

Finding the Fourth Proportional to 318,110.25, 438,982.79 and 182,139.69

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Solution

The fourth proportional to 318,110.25, 438,982.79 and 182,139.69 is: 251,347.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,110.25 : 438,982.79 = 182,139.69 : x
  2. Step 2: Convert to fraction form
    318,110.25/438,982.79 = 182,139.69/x
  3. Step 3: Cross multiply
    318,110.25x = 438,982.79 × 182,139.69
  4. Step 4: Simplify right side
    318,110.25x = 79,956,188,375.24
  5. Step 5: Solve for x
    x = 79,956,188,375.24/318,110.25
  6. Step 6: Final answer
    x = 251,347.41

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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.