Home / 320,940.77-442,923.19-177,714.14

Finding the Fourth Proportional to 320,940.77, 442,923.19 and 177,714.14

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Solution

The fourth proportional to 320,940.77, 442,923.19 and 177,714.14 is: 245,259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,940.77 : 442,923.19 = 177,714.14 : x
  2. Step 2: Convert to fraction form
    320,940.77/442,923.19 = 177,714.14/x
  3. Step 3: Cross multiply
    320,940.77x = 442,923.19 × 177,714.14
  4. Step 4: Simplify right side
    320,940.77x = 78,713,711,138.01
  5. Step 5: Solve for x
    x = 78,713,711,138.01/320,940.77
  6. Step 6: Final answer
    x = 245,259.31

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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.