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Finding the Fourth Proportional to 216,504.80, 324,671.09 and 83,311.03

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Solution

The fourth proportional to 216,504.80, 324,671.09 and 83,311.03 is: 124,933.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,504.80 : 324,671.09 = 83,311.03 : x
  2. Step 2: Convert to fraction form
    216,504.80/324,671.09 = 83,311.03/x
  3. Step 3: Cross multiply
    216,504.80x = 324,671.09 × 83,311.03
  4. Step 4: Simplify right side
    216,504.80x = 27,048,682,908.41
  5. Step 5: Solve for x
    x = 27,048,682,908.41/216,504.80
  6. Step 6: Final answer
    x = 124,933.41

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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.