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Finding the Fourth Proportional to 369.24, 551.16 and 325.46

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Solution

The fourth proportional to 369.24, 551.16 and 325.46 is: 485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.24 : 551.16 = 325.46 : x
  2. Step 2: Convert to fraction form
    369.24/551.16 = 325.46/x
  3. Step 3: Cross multiply
    369.24x = 551.16 × 325.46
  4. Step 4: Simplify right side
    369.24x = 179,378.78
  5. Step 5: Solve for x
    x = 179,378.78/369.24
  6. Step 6: Final answer
    x = 485.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.