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Finding the Fourth Proportional to 368,906.68, 552,965.82 and 263,405.80

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Solution

The fourth proportional to 368,906.68, 552,965.82 and 263,405.80 is: 394,827.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,906.68 : 552,965.82 = 263,405.80 : x
  2. Step 2: Convert to fraction form
    368,906.68/552,965.82 = 263,405.80/x
  3. Step 3: Cross multiply
    368,906.68x = 552,965.82 × 263,405.80
  4. Step 4: Simplify right side
    368,906.68x = 145,654,404,189.76
  5. Step 5: Solve for x
    x = 145,654,404,189.76/368,906.68
  6. Step 6: Final answer
    x = 394,827.23

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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.