Home / 259,008.22-388,565.07-109,249.07

Finding the Fourth Proportional to 259,008.22, 388,565.07 and 109,249.07

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Solution

The fourth proportional to 259,008.22, 388,565.07 and 109,249.07 is: 163,895.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,008.22 : 388,565.07 = 109,249.07 : x
  2. Step 2: Convert to fraction form
    259,008.22/388,565.07 = 109,249.07/x
  3. Step 3: Cross multiply
    259,008.22x = 388,565.07 × 109,249.07
  4. Step 4: Simplify right side
    259,008.22x = 42,450,373,503.40
  5. Step 5: Solve for x
    x = 42,450,373,503.40/259,008.22
  6. Step 6: Final answer
    x = 163,895.86

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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.