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Finding the Fourth Proportional to 333.92, 503.96 and 325.28

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Solution

The fourth proportional to 333.92, 503.96 and 325.28 is: 490.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.92 : 503.96 = 325.28 : x
  2. Step 2: Convert to fraction form
    333.92/503.96 = 325.28/x
  3. Step 3: Cross multiply
    333.92x = 503.96 × 325.28
  4. Step 4: Simplify right side
    333.92x = 163,928.11
  5. Step 5: Solve for x
    x = 163,928.11/333.92
  6. Step 6: Final answer
    x = 490.92

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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.