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Finding the Fourth Proportional to 216,504.77, 324,757.55 and 83,447.69

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Solution

The fourth proportional to 216,504.77, 324,757.55 and 83,447.69 is: 125,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,504.77 : 324,757.55 = 83,447.69 : x
  2. Step 2: Convert to fraction form
    216,504.77/324,757.55 = 83,447.69/x
  3. Step 3: Cross multiply
    216,504.77x = 324,757.55 × 83,447.69
  4. Step 4: Simplify right side
    216,504.77x = 27,100,265,942.39
  5. Step 5: Solve for x
    x = 27,100,265,942.39/216,504.77
  6. Step 6: Final answer
    x = 125,171.68

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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.