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Finding the Fourth Proportional to 550,162.20, 825,729.30 and 325,241.40

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Solution

The fourth proportional to 550,162.20, 825,729.30 and 325,241.40 is: 488,149.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,162.20 : 825,729.30 = 325,241.40 : x
  2. Step 2: Convert to fraction form
    550,162.20/825,729.30 = 325,241.40/x
  3. Step 3: Cross multiply
    550,162.20x = 825,729.30 × 325,241.40
  4. Step 4: Simplify right side
    550,162.20x = 268,561,353,553.02
  5. Step 5: Solve for x
    x = 268,561,353,553.02/550,162.20
  6. Step 6: Final answer
    x = 488,149.41

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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.