Home / 320,968.20-442,930.71-177,725.17

Finding the Fourth Proportional to 320,968.20, 442,930.71 and 177,725.17

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Solution

The fourth proportional to 320,968.20, 442,930.71 and 177,725.17 is: 245,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,968.20 : 442,930.71 = 177,725.17 : x
  2. Step 2: Convert to fraction form
    320,968.20/442,930.71 = 177,725.17/x
  3. Step 3: Cross multiply
    320,968.20x = 442,930.71 × 177,725.17
  4. Step 4: Simplify right side
    320,968.20x = 78,719,935,732.97
  5. Step 5: Solve for x
    x = 78,719,935,732.97/320,968.20
  6. Step 6: Final answer
    x = 245,257.74

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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.