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Finding the Fourth Proportional to 383.48, 574.62 and 369.24

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Solution

The fourth proportional to 383.48, 574.62 and 369.24 is: 553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.48 : 574.62 = 369.24 : x
  2. Step 2: Convert to fraction form
    383.48/574.62 = 369.24/x
  3. Step 3: Cross multiply
    383.48x = 574.62 × 369.24
  4. Step 4: Simplify right side
    383.48x = 212,172.69
  5. Step 5: Solve for x
    x = 212,172.69/383.48
  6. Step 6: Final answer
    x = 553.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.