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Finding the Fourth Proportional to 505,331.01, 757,140.06 and 305,230.97

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Solution

The fourth proportional to 505,331.01, 757,140.06 and 305,230.97 is: 457,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,331.01 : 757,140.06 = 305,230.97 : x
  2. Step 2: Convert to fraction form
    505,331.01/757,140.06 = 305,230.97/x
  3. Step 3: Cross multiply
    505,331.01x = 757,140.06 × 305,230.97
  4. Step 4: Simplify right side
    505,331.01x = 231,102,593,413.50
  5. Step 5: Solve for x
    x = 231,102,593,413.50/505,331.01
  6. Step 6: Final answer
    x = 457,329.13

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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.