Home / 320,972.22-442,936.22-177,729.18

Finding the Fourth Proportional to 320,972.22, 442,936.22 and 177,729.18

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Solution

The fourth proportional to 320,972.22, 442,936.22 and 177,729.18 is: 245,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,972.22 : 442,936.22 = 177,729.18 : x
  2. Step 2: Convert to fraction form
    320,972.22/442,936.22 = 177,729.18/x
  3. Step 3: Cross multiply
    320,972.22x = 442,936.22 × 177,729.18
  4. Step 4: Simplify right side
    320,972.22x = 78,722,691,172.90
  5. Step 5: Solve for x
    x = 78,722,691,172.90/320,972.22
  6. Step 6: Final answer
    x = 245,263.25

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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.