Home / 259,933.56-389,914.08-72,959.64

Finding the Fourth Proportional to 259,933.56, 389,914.08 and 72,959.64

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Solution

The fourth proportional to 259,933.56, 389,914.08 and 72,959.64 is: 109,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,933.56 : 389,914.08 = 72,959.64 : x
  2. Step 2: Convert to fraction form
    259,933.56/389,914.08 = 72,959.64/x
  3. Step 3: Cross multiply
    259,933.56x = 389,914.08 × 72,959.64
  4. Step 4: Simplify right side
    259,933.56x = 28,447,990,907.73
  5. Step 5: Solve for x
    x = 28,447,990,907.73/259,933.56
  6. Step 6: Final answer
    x = 109,443.32

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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.