Home / 221,045.26-331,665.90-115,839.22

Finding the Fourth Proportional to 221,045.26, 331,665.90 and 115,839.22

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Solution

The fourth proportional to 221,045.26, 331,665.90 and 115,839.22 is: 173,810.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,045.26 : 331,665.90 = 115,839.22 : x
  2. Step 2: Convert to fraction form
    221,045.26/331,665.90 = 115,839.22/x
  3. Step 3: Cross multiply
    221,045.26x = 331,665.90 × 115,839.22
  4. Step 4: Simplify right side
    221,045.26x = 38,419,919,156.60
  5. Step 5: Solve for x
    x = 38,419,919,156.60/221,045.26
  6. Step 6: Final answer
    x = 173,810.19

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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.