Home / 320,811.75-442,673.86-177,571.45

Finding the Fourth Proportional to 320,811.75, 442,673.86 and 177,571.45

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Solution

The fourth proportional to 320,811.75, 442,673.86 and 177,571.45 is: 245,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,811.75 : 442,673.86 = 177,571.45 : x
  2. Step 2: Convert to fraction form
    320,811.75/442,673.86 = 177,571.45/x
  3. Step 3: Cross multiply
    320,811.75x = 442,673.86 × 177,571.45
  4. Step 4: Simplify right side
    320,811.75x = 78,606,239,197.30
  5. Step 5: Solve for x
    x = 78,606,239,197.30/320,811.75
  6. Step 6: Final answer
    x = 245,022.94

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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.