Home / 216,015.09-324,010.50-66,254.97

Finding the Fourth Proportional to 216,015.09, 324,010.50 and 66,254.97

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Solution

The fourth proportional to 216,015.09, 324,010.50 and 66,254.97 is: 99,378.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,015.09 : 324,010.50 = 66,254.97 : x
  2. Step 2: Convert to fraction form
    216,015.09/324,010.50 = 66,254.97/x
  3. Step 3: Cross multiply
    216,015.09x = 324,010.50 × 66,254.97
  4. Step 4: Simplify right side
    216,015.09x = 21,467,305,957.19
  5. Step 5: Solve for x
    x = 21,467,305,957.19/216,015.09
  6. Step 6: Final answer
    x = 99,378.73

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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.