Home / 226,413.20-339,403.80-84,220.40

Finding the Fourth Proportional to 226,413.20, 339,403.80 and 84,220.40

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Solution

The fourth proportional to 226,413.20, 339,403.80 and 84,220.40 is: 126,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,413.20 : 339,403.80 = 84,220.40 : x
  2. Step 2: Convert to fraction form
    226,413.20/339,403.80 = 84,220.40/x
  3. Step 3: Cross multiply
    226,413.20x = 339,403.80 × 84,220.40
  4. Step 4: Simplify right side
    226,413.20x = 28,584,723,797.52
  5. Step 5: Solve for x
    x = 28,584,723,797.52/226,413.20
  6. Step 6: Final answer
    x = 126,250.25

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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.