Home / 216,200.92-324,268.11-72,109.28

Finding the Fourth Proportional to 216,200.92, 324,268.11 and 72,109.28

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Solution

The fourth proportional to 216,200.92, 324,268.11 and 72,109.28 is: 108,152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,200.92 : 324,268.11 = 72,109.28 : x
  2. Step 2: Convert to fraction form
    216,200.92/324,268.11 = 72,109.28/x
  3. Step 3: Cross multiply
    216,200.92x = 324,268.11 × 72,109.28
  4. Step 4: Simplify right side
    216,200.92x = 23,382,739,939.06
  5. Step 5: Solve for x
    x = 23,382,739,939.06/216,200.92
  6. Step 6: Final answer
    x = 108,152.82

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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.