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Finding the Fourth Proportional to 643,770.88, 965,544.96 and 170,463.04

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Solution

The fourth proportional to 643,770.88, 965,544.96 and 170,463.04 is: 255,665.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,770.88 : 965,544.96 = 170,463.04 : x
  2. Step 2: Convert to fraction form
    643,770.88/965,544.96 = 170,463.04/x
  3. Step 3: Cross multiply
    643,770.88x = 965,544.96 × 170,463.04
  4. Step 4: Simplify right side
    643,770.88x = 164,589,729,138.28
  5. Step 5: Solve for x
    x = 164,589,729,138.28/643,770.88
  6. Step 6: Final answer
    x = 255,665.07

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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.