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Finding the Fourth Proportional to 216,468.08, 324,744.66 and 66,682.88

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Solution

The fourth proportional to 216,468.08, 324,744.66 and 66,682.88 is: 100,037.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,468.08 : 324,744.66 = 66,682.88 : x
  2. Step 2: Convert to fraction form
    216,468.08/324,744.66 = 66,682.88/x
  3. Step 3: Cross multiply
    216,468.08x = 324,744.66 × 66,682.88
  4. Step 4: Simplify right side
    216,468.08x = 21,654,909,193.42
  5. Step 5: Solve for x
    x = 21,654,909,193.42/216,468.08
  6. Step 6: Final answer
    x = 100,037.42

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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.