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Finding the Fourth Proportional to 216,229.77, 324,375.62 and 66,482.64

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Solution

The fourth proportional to 216,229.77, 324,375.62 and 66,482.64 is: 99,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,229.77 : 324,375.62 = 66,482.64 : x
  2. Step 2: Convert to fraction form
    216,229.77/324,375.62 = 66,482.64/x
  3. Step 3: Cross multiply
    216,229.77x = 324,375.62 × 66,482.64
  4. Step 4: Simplify right side
    216,229.77x = 21,565,347,236.82
  5. Step 5: Solve for x
    x = 21,565,347,236.82/216,229.77
  6. Step 6: Final answer
    x = 99,733.48

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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.