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Finding the Fourth Proportional to 484,999.85, 669,299.97 and 281,168.93

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Solution

The fourth proportional to 484,999.85, 669,299.97 and 281,168.93 is: 388,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,999.85 : 669,299.97 = 281,168.93 : x
  2. Step 2: Convert to fraction form
    484,999.85/669,299.97 = 281,168.93/x
  3. Step 3: Cross multiply
    484,999.85x = 669,299.97 × 281,168.93
  4. Step 4: Simplify right side
    484,999.85x = 188,186,356,413.93
  5. Step 5: Solve for x
    x = 188,186,356,413.93/484,999.85
  6. Step 6: Final answer
    x = 388,013.23

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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.