Home / 320,910.46-442,886.14-177,670.50

Finding the Fourth Proportional to 320,910.46, 442,886.14 and 177,670.50

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Solution

The fourth proportional to 320,910.46, 442,886.14 and 177,670.50 is: 245,201.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,910.46 : 442,886.14 = 177,670.50 : x
  2. Step 2: Convert to fraction form
    320,910.46/442,886.14 = 177,670.50/x
  3. Step 3: Cross multiply
    320,910.46x = 442,886.14 × 177,670.50
  4. Step 4: Simplify right side
    320,910.46x = 78,687,801,936.87
  5. Step 5: Solve for x
    x = 78,687,801,936.87/320,910.46
  6. Step 6: Final answer
    x = 245,201.74

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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.