Home / 221,515.57-332,257.28-86,554.27

Finding the Fourth Proportional to 221,515.57, 332,257.28 and 86,554.27

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Solution

The fourth proportional to 221,515.57, 332,257.28 and 86,554.27 is: 129,825.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,515.57 : 332,257.28 = 86,554.27 : x
  2. Step 2: Convert to fraction form
    221,515.57/332,257.28 = 86,554.27/x
  3. Step 3: Cross multiply
    221,515.57x = 332,257.28 × 86,554.27
  4. Step 4: Simplify right side
    221,515.57x = 28,758,285,708.33
  5. Step 5: Solve for x
    x = 28,758,285,708.33/221,515.57
  6. Step 6: Final answer
    x = 129,825.12

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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.