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Finding the Fourth Proportional to 1,304.24, 1,956.36 and 330.34

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Solution

The fourth proportional to 1,304.24, 1,956.36 and 330.34 is: 495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,304.24 : 1,956.36 = 330.34 : x
  2. Step 2: Convert to fraction form
    1,304.24/1,956.36 = 330.34/x
  3. Step 3: Cross multiply
    1,304.24x = 1,956.36 × 330.34
  4. Step 4: Simplify right side
    1,304.24x = 646,263.96
  5. Step 5: Solve for x
    x = 646,263.96/1,304.24
  6. Step 6: Final answer
    x = 495.51

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Double scale
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Similar ratio
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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.