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Finding the Fourth Proportional to 413.45, 570.57 and 236.46

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Solution

The fourth proportional to 413.45, 570.57 and 236.46 is: 326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    413.45 : 570.57 = 236.46 : x
  2. Step 2: Convert to fraction form
    413.45/570.57 = 236.46/x
  3. Step 3: Cross multiply
    413.45x = 570.57 × 236.46
  4. Step 4: Simplify right side
    413.45x = 134,916.98
  5. Step 5: Solve for x
    x = 134,916.98/413.45
  6. Step 6: Final answer
    x = 326.32

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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.