Home / 320,664.64-442,477.20-177,404.80

Finding the Fourth Proportional to 320,664.64, 442,477.20 and 177,404.80

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Solution

The fourth proportional to 320,664.64, 442,477.20 and 177,404.80 is: 244,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,664.64 : 442,477.20 = 177,404.80 : x
  2. Step 2: Convert to fraction form
    320,664.64/442,477.20 = 177,404.80/x
  3. Step 3: Cross multiply
    320,664.64x = 442,477.20 × 177,404.80
  4. Step 4: Simplify right side
    320,664.64x = 78,497,579,170.56
  5. Step 5: Solve for x
    x = 78,497,579,170.56/320,664.64
  6. Step 6: Final answer
    x = 244,796.49

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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.