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Finding the Fourth Proportional to 216,994.56, 325,422.72 and 69,216

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Solution

The fourth proportional to 216,994.56, 325,422.72 and 69,216 is: 103,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,994.56 : 325,422.72 = 69,216 : x
  2. Step 2: Convert to fraction form
    216,994.56/325,422.72 = 69,216/x
  3. Step 3: Cross multiply
    216,994.56x = 325,422.72 × 69,216
  4. Step 4: Simplify right side
    216,994.56x = 22,524,458,987.52
  5. Step 5: Solve for x
    x = 22,524,458,987.52/216,994.56
  6. Step 6: Final answer
    x = 103,801.95

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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.