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Finding the Fourth Proportional to 336.18, 503.28 and 327.90

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Solution

The fourth proportional to 336.18, 503.28 and 327.90 is: 490.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.18 : 503.28 = 327.90 : x
  2. Step 2: Convert to fraction form
    336.18/503.28 = 327.90/x
  3. Step 3: Cross multiply
    336.18x = 503.28 × 327.90
  4. Step 4: Simplify right side
    336.18x = 165,025.51
  5. Step 5: Solve for x
    x = 165,025.51/336.18
  6. Step 6: Final answer
    x = 490.88

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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.