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Finding the Fourth Proportional to 369.92, 556.32 and 297.92

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Solution

The fourth proportional to 369.92, 556.32 and 297.92 is: 448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.92 : 556.32 = 297.92 : x
  2. Step 2: Convert to fraction form
    369.92/556.32 = 297.92/x
  3. Step 3: Cross multiply
    369.92x = 556.32 × 297.92
  4. Step 4: Simplify right side
    369.92x = 165,738.85
  5. Step 5: Solve for x
    x = 165,738.85/369.92
  6. Step 6: Final answer
    x = 448.04

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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.