Home / 286,380.85-395,248.68-206,074.21

Finding the Fourth Proportional to 286,380.85, 395,248.68 and 206,074.21

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Solution

The fourth proportional to 286,380.85, 395,248.68 and 206,074.21 is: 284,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,380.85 : 395,248.68 = 206,074.21 : x
  2. Step 2: Convert to fraction form
    286,380.85/395,248.68 = 206,074.21/x
  3. Step 3: Cross multiply
    286,380.85x = 395,248.68 × 206,074.21
  4. Step 4: Simplify right side
    286,380.85x = 81,450,559,484.54
  5. Step 5: Solve for x
    x = 81,450,559,484.54/286,380.85
  6. Step 6: Final answer
    x = 284,413.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.