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Finding the Fourth Proportional to 269,958.80, 404,938.20 and 189,477.20

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Solution

The fourth proportional to 269,958.80, 404,938.20 and 189,477.20 is: 284,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,958.80 : 404,938.20 = 189,477.20 : x
  2. Step 2: Convert to fraction form
    269,958.80/404,938.20 = 189,477.20/x
  3. Step 3: Cross multiply
    269,958.80x = 404,938.20 × 189,477.20
  4. Step 4: Simplify right side
    269,958.80x = 76,726,556,309.04
  5. Step 5: Solve for x
    x = 76,726,556,309.04/269,958.80
  6. Step 6: Final answer
    x = 284,215.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.