Home / 321,228.05-443,341.91-185,235.43

Finding the Fourth Proportional to 321,228.05, 443,341.91 and 185,235.43

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Solution

The fourth proportional to 321,228.05, 443,341.91 and 185,235.43 is: 255,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,228.05 : 443,341.91 = 185,235.43 : x
  2. Step 2: Convert to fraction form
    321,228.05/443,341.91 = 185,235.43/x
  3. Step 3: Cross multiply
    321,228.05x = 443,341.91 × 185,235.43
  4. Step 4: Simplify right side
    321,228.05x = 82,122,629,335.87
  5. Step 5: Solve for x
    x = 82,122,629,335.87/321,228.05
  6. Step 6: Final answer
    x = 255,652.11

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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.