Home / 321,321.88-443,412.12-178,084.36

Finding the Fourth Proportional to 321,321.88, 443,412.12 and 178,084.36

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Solution

The fourth proportional to 321,321.88, 443,412.12 and 178,084.36 is: 245,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,321.88 : 443,412.12 = 178,084.36 : x
  2. Step 2: Convert to fraction form
    321,321.88/443,412.12 = 178,084.36/x
  3. Step 3: Cross multiply
    321,321.88x = 443,412.12 × 178,084.36
  4. Step 4: Simplify right side
    321,321.88x = 78,964,763,606.44
  5. Step 5: Solve for x
    x = 78,964,763,606.44/321,321.88
  6. Step 6: Final answer
    x = 245,749.72

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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.