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Finding the Fourth Proportional to 274,504.80, 412,413.30 and 245,636.40

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Solution

The fourth proportional to 274,504.80, 412,413.30 and 245,636.40 is: 369,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,504.80 : 412,413.30 = 245,636.40 : x
  2. Step 2: Convert to fraction form
    274,504.80/412,413.30 = 245,636.40/x
  3. Step 3: Cross multiply
    274,504.80x = 412,413.30 × 245,636.40
  4. Step 4: Simplify right side
    274,504.80x = 101,303,718,324.12
  5. Step 5: Solve for x
    x = 101,303,718,324.12/274,504.80
  6. Step 6: Final answer
    x = 369,041.70

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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.