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Finding the Fourth Proportional to 216,118.82, 324,220.25 and 82,989.29

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Solution

The fourth proportional to 216,118.82, 324,220.25 and 82,989.29 is: 124,500.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,118.82 : 324,220.25 = 82,989.29 : x
  2. Step 2: Convert to fraction form
    216,118.82/324,220.25 = 82,989.29/x
  3. Step 3: Cross multiply
    216,118.82x = 324,220.25 × 82,989.29
  4. Step 4: Simplify right side
    216,118.82x = 26,906,809,369.15
  5. Step 5: Solve for x
    x = 26,906,809,369.15/216,118.82
  6. Step 6: Final answer
    x = 124,500.07

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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.