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Finding the Fourth Proportional to 356.32, 536.36 and 325.18

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Solution

The fourth proportional to 356.32, 536.36 and 325.18 is: 489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.32 : 536.36 = 325.18 : x
  2. Step 2: Convert to fraction form
    356.32/536.36 = 325.18/x
  3. Step 3: Cross multiply
    356.32x = 536.36 × 325.18
  4. Step 4: Simplify right side
    356.32x = 174,413.54
  5. Step 5: Solve for x
    x = 174,413.54/356.32
  6. Step 6: Final answer
    x = 489.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.