Home / 216,236.94-324,216.81-89,964.78

Finding the Fourth Proportional to 216,236.94, 324,216.81 and 89,964.78

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Solution

The fourth proportional to 216,236.94, 324,216.81 and 89,964.78 is: 134,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,236.94 : 324,216.81 = 89,964.78 : x
  2. Step 2: Convert to fraction form
    216,236.94/324,216.81 = 89,964.78/x
  3. Step 3: Cross multiply
    216,236.94x = 324,216.81 × 89,964.78
  4. Step 4: Simplify right side
    216,236.94x = 29,168,093,983.95
  5. Step 5: Solve for x
    x = 29,168,093,983.95/216,236.94
  6. Step 6: Final answer
    x = 134,889.51

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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.