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Finding the Fourth Proportional to 336.92, 508.48 and 328.28

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Solution

The fourth proportional to 336.92, 508.48 and 328.28 is: 495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.92 : 508.48 = 328.28 : x
  2. Step 2: Convert to fraction form
    336.92/508.48 = 328.28/x
  3. Step 3: Cross multiply
    336.92x = 508.48 × 328.28
  4. Step 4: Simplify right side
    336.92x = 166,923.81
  5. Step 5: Solve for x
    x = 166,923.81/336.92
  6. Step 6: Final answer
    x = 495.44

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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.