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Finding the Fourth Proportional to 508.72, 763.10 and 336.49

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Solution

The fourth proportional to 508.72, 763.10 and 336.49 is: 504.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.72 : 763.10 = 336.49 : x
  2. Step 2: Convert to fraction form
    508.72/763.10 = 336.49/x
  3. Step 3: Cross multiply
    508.72x = 763.10 × 336.49
  4. Step 4: Simplify right side
    508.72x = 256,775.52
  5. Step 5: Solve for x
    x = 256,775.52/508.72
  6. Step 6: Final answer
    x = 504.75

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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.