Home / 216,305.48-324,458.94-66,544.76

Finding the Fourth Proportional to 216,305.48, 324,458.94 and 66,544.76

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Solution

The fourth proportional to 216,305.48, 324,458.94 and 66,544.76 is: 99,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,305.48 : 324,458.94 = 66,544.76 : x
  2. Step 2: Convert to fraction form
    216,305.48/324,458.94 = 66,544.76/x
  3. Step 3: Cross multiply
    216,305.48x = 324,458.94 × 66,544.76
  4. Step 4: Simplify right side
    216,305.48x = 21,591,042,292.15
  5. Step 5: Solve for x
    x = 21,591,042,292.15/216,305.48
  6. Step 6: Final answer
    x = 99,817.36

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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.