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Finding the Fourth Proportional to 369.36, 550.32 and 357.12

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Solution

The fourth proportional to 369.36, 550.32 and 357.12 is: 532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.36 : 550.32 = 357.12 : x
  2. Step 2: Convert to fraction form
    369.36/550.32 = 357.12/x
  3. Step 3: Cross multiply
    369.36x = 550.32 × 357.12
  4. Step 4: Simplify right side
    369.36x = 196,530.28
  5. Step 5: Solve for x
    x = 196,530.28/369.36
  6. Step 6: Final answer
    x = 532.08

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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.