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Finding the Fourth Proportional to 300,770.35, 415,047.26 and 171,703.73

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Solution

The fourth proportional to 300,770.35, 415,047.26 and 171,703.73 is: 236,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,770.35 : 415,047.26 = 171,703.73 : x
  2. Step 2: Convert to fraction form
    300,770.35/415,047.26 = 171,703.73/x
  3. Step 3: Cross multiply
    300,770.35x = 415,047.26 × 171,703.73
  4. Step 4: Simplify right side
    300,770.35x = 71,265,164,135.16
  5. Step 5: Solve for x
    x = 71,265,164,135.16/300,770.35
  6. Step 6: Final answer
    x = 236,942.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.