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Finding the Fourth Proportional to 450,414.91, 621,467.94 and 269,185.51

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Solution

The fourth proportional to 450,414.91, 621,467.94 and 269,185.51 is: 371,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,414.91 : 621,467.94 = 269,185.51 : x
  2. Step 2: Convert to fraction form
    450,414.91/621,467.94 = 269,185.51/x
  3. Step 3: Cross multiply
    450,414.91x = 621,467.94 × 269,185.51
  4. Step 4: Simplify right side
    450,414.91x = 167,290,164,377.55
  5. Step 5: Solve for x
    x = 167,290,164,377.55/450,414.91
  6. Step 6: Final answer
    x = 371,413.47

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1.5x scale

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.