Home / 320,371.20-442,104.48-177,127.56

Finding the Fourth Proportional to 320,371.20, 442,104.48 and 177,127.56

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Solution

The fourth proportional to 320,371.20, 442,104.48 and 177,127.56 is: 244,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,371.20 : 442,104.48 = 177,127.56 : x
  2. Step 2: Convert to fraction form
    320,371.20/442,104.48 = 177,127.56/x
  3. Step 3: Cross multiply
    320,371.20x = 442,104.48 × 177,127.56
  4. Step 4: Simplify right side
    320,371.20x = 78,308,887,807.47
  5. Step 5: Solve for x
    x = 78,308,887,807.47/320,371.20
  6. Step 6: Final answer
    x = 244,431.73

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1.5x scale

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.