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Finding the Fourth Proportional to 383,265.73, 528,902.42 and 217,692.51

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Solution

The fourth proportional to 383,265.73, 528,902.42 and 217,692.51 is: 300,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,265.73 : 528,902.42 = 217,692.51 : x
  2. Step 2: Convert to fraction form
    383,265.73/528,902.42 = 217,692.51/x
  3. Step 3: Cross multiply
    383,265.73x = 528,902.42 × 217,692.51
  4. Step 4: Simplify right side
    383,265.73x = 115,138,095,354.87
  5. Step 5: Solve for x
    x = 115,138,095,354.87/383,265.73
  6. Step 6: Final answer
    x = 300,413.23

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Why These Related Problems?

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