Home / 320,940.43-442,862.03-177,664.59

Finding the Fourth Proportional to 320,940.43, 442,862.03 and 177,664.59

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Solution

The fourth proportional to 320,940.43, 442,862.03 and 177,664.59 is: 245,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,940.43 : 442,862.03 = 177,664.59 : x
  2. Step 2: Convert to fraction form
    320,940.43/442,862.03 = 177,664.59/x
  3. Step 3: Cross multiply
    320,940.43x = 442,862.03 × 177,664.59
  4. Step 4: Simplify right side
    320,940.43x = 78,680,901,430.68
  5. Step 5: Solve for x
    x = 78,680,901,430.68/320,940.43
  6. Step 6: Final answer
    x = 245,157.34

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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.