Home / 205,313.42-308,067.60-142,230.62

Finding the Fourth Proportional to 205,313.42, 308,067.60 and 142,230.62

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Solution

The fourth proportional to 205,313.42, 308,067.60 and 142,230.62 is: 213,413.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,313.42 : 308,067.60 = 142,230.62 : x
  2. Step 2: Convert to fraction form
    205,313.42/308,067.60 = 142,230.62/x
  3. Step 3: Cross multiply
    205,313.42x = 308,067.60 × 142,230.62
  4. Step 4: Simplify right side
    205,313.42x = 43,816,645,749.91
  5. Step 5: Solve for x
    x = 43,816,645,749.91/205,313.42
  6. Step 6: Final answer
    x = 213,413.45

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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.