Home / 221,379.05-331,640.50-185,413.36

Finding the Fourth Proportional to 221,379.05, 331,640.50 and 185,413.36

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Solution

The fourth proportional to 221,379.05, 331,640.50 and 185,413.36 is: 277,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,379.05 : 331,640.50 = 185,413.36 : x
  2. Step 2: Convert to fraction form
    221,379.05/331,640.50 = 185,413.36/x
  3. Step 3: Cross multiply
    221,379.05x = 331,640.50 × 185,413.36
  4. Step 4: Simplify right side
    221,379.05x = 61,490,579,199.93
  5. Step 5: Solve for x
    x = 61,490,579,199.93/221,379.05
  6. Step 6: Final answer
    x = 277,761.51

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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.