Home / 320,986.74-442,918.26-177,743.10

Finding the Fourth Proportional to 320,986.74, 442,918.26 and 177,743.10

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Solution

The fourth proportional to 320,986.74, 442,918.26 and 177,743.10 is: 245,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,986.74 : 442,918.26 = 177,743.10 : x
  2. Step 2: Convert to fraction form
    320,986.74/442,918.26 = 177,743.10/x
  3. Step 3: Cross multiply
    320,986.74x = 442,918.26 × 177,743.10
  4. Step 4: Simplify right side
    320,986.74x = 78,725,664,579.01
  5. Step 5: Solve for x
    x = 78,725,664,579.01/320,986.74
  6. Step 6: Final answer
    x = 245,261.42

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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.