Home / 320,376.60-442,151.64-177,147.36

Finding the Fourth Proportional to 320,376.60, 442,151.64 and 177,147.36

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Solution

The fourth proportional to 320,376.60, 442,151.64 and 177,147.36 is: 244,481.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,376.60 : 442,151.64 = 177,147.36 : x
  2. Step 2: Convert to fraction form
    320,376.60/442,151.64 = 177,147.36/x
  3. Step 3: Cross multiply
    320,376.60x = 442,151.64 × 177,147.36
  4. Step 4: Simplify right side
    320,376.60x = 78,325,995,745.67
  5. Step 5: Solve for x
    x = 78,325,995,745.67/320,376.60
  6. Step 6: Final answer
    x = 244,481.01

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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.