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Finding the Fourth Proportional to 259,480.84, 389,232.84 and 79,553.32

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Solution

The fourth proportional to 259,480.84, 389,232.84 and 79,553.32 is: 119,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,480.84 : 389,232.84 = 79,553.32 : x
  2. Step 2: Convert to fraction form
    259,480.84/389,232.84 = 79,553.32/x
  3. Step 3: Cross multiply
    259,480.84x = 389,232.84 × 79,553.32
  4. Step 4: Simplify right side
    259,480.84x = 30,964,764,675.03
  5. Step 5: Solve for x
    x = 30,964,764,675.03/259,480.84
  6. Step 6: Final answer
    x = 119,333.53

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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.