Home / 320,504.31-442,268.39-177,228.47

Finding the Fourth Proportional to 320,504.31, 442,268.39 and 177,228.47

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Solution

The fourth proportional to 320,504.31, 442,268.39 and 177,228.47 is: 244,560.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,504.31 : 442,268.39 = 177,228.47 : x
  2. Step 2: Convert to fraction form
    320,504.31/442,268.39 = 177,228.47/x
  3. Step 3: Cross multiply
    320,504.31x = 442,268.39 × 177,228.47
  4. Step 4: Simplify right side
    320,504.31x = 78,382,546,991.58
  5. Step 5: Solve for x
    x = 78,382,546,991.58/320,504.31
  6. Step 6: Final answer
    x = 244,560.04

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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.