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Finding the Fourth Proportional to 336.34, 504.51 and 220.76

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Solution

The fourth proportional to 336.34, 504.51 and 220.76 is: 331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.34 : 504.51 = 220.76 : x
  2. Step 2: Convert to fraction form
    336.34/504.51 = 220.76/x
  3. Step 3: Cross multiply
    336.34x = 504.51 × 220.76
  4. Step 4: Simplify right side
    336.34x = 111,372.55
  5. Step 5: Solve for x
    x = 111,372.55/336.34
  6. Step 6: Final answer
    x = 331.13

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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.