Home / 215,413.82-322,639.58-156,113.31

Finding the Fourth Proportional to 215,413.82, 322,639.58 and 156,113.31

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Solution

The fourth proportional to 215,413.82, 322,639.58 and 156,113.31 is: 233,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,413.82 : 322,639.58 = 156,113.31 : x
  2. Step 2: Convert to fraction form
    215,413.82/322,639.58 = 156,113.31/x
  3. Step 3: Cross multiply
    215,413.82x = 322,639.58 × 156,113.31
  4. Step 4: Simplify right side
    215,413.82x = 50,368,332,770.81
  5. Step 5: Solve for x
    x = 50,368,332,770.81/215,413.82
  6. Step 6: Final answer
    x = 233,821.27

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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.