Home / 320,989.24-442,921.71-177,745.60

Finding the Fourth Proportional to 320,989.24, 442,921.71 and 177,745.60

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Solution

The fourth proportional to 320,989.24, 442,921.71 and 177,745.60 is: 245,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,989.24 : 442,921.71 = 177,745.60 : x
  2. Step 2: Convert to fraction form
    320,989.24/442,921.71 = 177,745.60/x
  3. Step 3: Cross multiply
    320,989.24x = 442,921.71 × 177,745.60
  4. Step 4: Simplify right side
    320,989.24x = 78,727,385,096.98
  5. Step 5: Solve for x
    x = 78,727,385,096.98/320,989.24
  6. Step 6: Final answer
    x = 245,264.87

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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.