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Finding the Fourth Proportional to 413.11, 569.86 and 326.17

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Solution

The fourth proportional to 413.11, 569.86 and 326.17 is: 449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.11 : 569.86 = 326.17 : x
  2. Step 2: Convert to fraction form
    413.11/569.86 = 326.17/x
  3. Step 3: Cross multiply
    413.11x = 569.86 × 326.17
  4. Step 4: Simplify right side
    413.11x = 185,871.24
  5. Step 5: Solve for x
    x = 185,871.24/413.11
  6. Step 6: Final answer
    x = 449.93

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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.