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Finding the Fourth Proportional to 281,337.31, 422,920.40 and 225,786.12

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Solution

The fourth proportional to 281,337.31, 422,920.40 and 225,786.12 is: 339,413.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,337.31 : 422,920.40 = 225,786.12 : x
  2. Step 2: Convert to fraction form
    281,337.31/422,920.40 = 225,786.12/x
  3. Step 3: Cross multiply
    281,337.31x = 422,920.40 × 225,786.12
  4. Step 4: Simplify right side
    281,337.31x = 95,489,556,184.85
  5. Step 5: Solve for x
    x = 95,489,556,184.85/281,337.31
  6. Step 6: Final answer
    x = 339,413.06

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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.