Home / 321,238.80-443,329.14-185,270.28

Finding the Fourth Proportional to 321,238.80, 443,329.14 and 185,270.28

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Solution

The fourth proportional to 321,238.80, 443,329.14 and 185,270.28 is: 255,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,238.80 : 443,329.14 = 185,270.28 : x
  2. Step 2: Convert to fraction form
    321,238.80/443,329.14 = 185,270.28/x
  3. Step 3: Cross multiply
    321,238.80x = 443,329.14 × 185,270.28
  4. Step 4: Simplify right side
    321,238.80x = 82,135,713,899.96
  5. Step 5: Solve for x
    x = 82,135,713,899.96/321,238.80
  6. Step 6: Final answer
    x = 255,684.29

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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.