Home / 321,283.99-443,360.75-178,057.36

Finding the Fourth Proportional to 321,283.99, 443,360.75 and 178,057.36

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Solution

The fourth proportional to 321,283.99, 443,360.75 and 178,057.36 is: 245,712.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,283.99 : 443,360.75 = 178,057.36 : x
  2. Step 2: Convert to fraction form
    321,283.99/443,360.75 = 178,057.36/x
  3. Step 3: Cross multiply
    321,283.99x = 443,360.75 × 178,057.36
  4. Step 4: Simplify right side
    321,283.99x = 78,943,644,672.62
  5. Step 5: Solve for x
    x = 78,943,644,672.62/321,283.99
  6. Step 6: Final answer
    x = 245,712.97

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1.5x scale

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.