Home / 216,414.04-324,655.94-66,654.28

Finding the Fourth Proportional to 216,414.04, 324,655.94 and 66,654.28

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Solution

The fourth proportional to 216,414.04, 324,655.94 and 66,654.28 is: 99,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,414.04 : 324,655.94 = 66,654.28 : x
  2. Step 2: Convert to fraction form
    216,414.04/324,655.94 = 66,654.28/x
  3. Step 3: Cross multiply
    216,414.04x = 324,655.94 × 66,654.28
  4. Step 4: Simplify right side
    216,414.04x = 21,639,707,928.42
  5. Step 5: Solve for x
    x = 21,639,707,928.42/216,414.04
  6. Step 6: Final answer
    x = 99,992.16

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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.