Home / 203,200.18-280,403.91-112,550.85

Finding the Fourth Proportional to 203,200.18, 280,403.91 and 112,550.85

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Solution

The fourth proportional to 203,200.18, 280,403.91 and 112,550.85 is: 155,313.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,200.18 : 280,403.91 = 112,550.85 : x
  2. Step 2: Convert to fraction form
    203,200.18/280,403.91 = 112,550.85/x
  3. Step 3: Cross multiply
    203,200.18x = 280,403.91 × 112,550.85
  4. Step 4: Simplify right side
    203,200.18x = 31,559,698,413.82
  5. Step 5: Solve for x
    x = 31,559,698,413.82/203,200.18
  6. Step 6: Final answer
    x = 155,313.34

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