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Finding the Fourth Proportional to 391,968.96, 588,294.72 and 223,825.92

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Solution

The fourth proportional to 391,968.96, 588,294.72 and 223,825.92 is: 335,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,968.96 : 588,294.72 = 223,825.92 : x
  2. Step 2: Convert to fraction form
    391,968.96/588,294.72 = 223,825.92/x
  3. Step 3: Cross multiply
    391,968.96x = 588,294.72 × 223,825.92
  4. Step 4: Simplify right side
    391,968.96x = 131,675,606,935.14
  5. Step 5: Solve for x
    x = 131,675,606,935.14/391,968.96
  6. Step 6: Final answer
    x = 335,933.76

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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.