Home / 320,983.50-442,951.78-177,740.47

Finding the Fourth Proportional to 320,983.50, 442,951.78 and 177,740.47

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Solution

The fourth proportional to 320,983.50, 442,951.78 and 177,740.47 is: 245,278.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,983.50 : 442,951.78 = 177,740.47 : x
  2. Step 2: Convert to fraction form
    320,983.50/442,951.78 = 177,740.47/x
  3. Step 3: Cross multiply
    320,983.50x = 442,951.78 × 177,740.47
  4. Step 4: Simplify right side
    320,983.50x = 78,730,457,564.54
  5. Step 5: Solve for x
    x = 78,730,457,564.54/320,983.50
  6. Step 6: Final answer
    x = 245,278.83

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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.