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Finding the Fourth Proportional to 259,297.97, 389,094.57 and 207,039.60

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Solution

The fourth proportional to 259,297.97, 389,094.57 and 207,039.60 is: 310,677.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,297.97 : 389,094.57 = 207,039.60 : x
  2. Step 2: Convert to fraction form
    259,297.97/389,094.57 = 207,039.60/x
  3. Step 3: Cross multiply
    259,297.97x = 389,094.57 × 207,039.60
  4. Step 4: Simplify right side
    259,297.97x = 80,557,984,134.97
  5. Step 5: Solve for x
    x = 80,557,984,134.97/259,297.97
  6. Step 6: Final answer
    x = 310,677.27

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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.