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Finding the Fourth Proportional to 510.31, 765.19 and 236.46

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Solution

The fourth proportional to 510.31, 765.19 and 236.46 is: 354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.31 : 765.19 = 236.46 : x
  2. Step 2: Convert to fraction form
    510.31/765.19 = 236.46/x
  3. Step 3: Cross multiply
    510.31x = 765.19 × 236.46
  4. Step 4: Simplify right side
    510.31x = 180,936.83
  5. Step 5: Solve for x
    x = 180,936.83/510.31
  6. Step 6: Final answer
    x = 354.56

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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.