Home / 220,942.40-331,413.60-203,835.20

Finding the Fourth Proportional to 220,942.40, 331,413.60 and 203,835.20

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Solution

The fourth proportional to 220,942.40, 331,413.60 and 203,835.20 is: 305,752.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,942.40 : 331,413.60 = 203,835.20 : x
  2. Step 2: Convert to fraction form
    220,942.40/331,413.60 = 203,835.20/x
  3. Step 3: Cross multiply
    220,942.40x = 331,413.60 × 203,835.20
  4. Step 4: Simplify right side
    220,942.40x = 67,553,757,438.72
  5. Step 5: Solve for x
    x = 67,553,757,438.72/220,942.40
  6. Step 6: Final answer
    x = 305,752.80

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1.5x scale

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.