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Finding the Fourth Proportional to 510, 765.28 and 236.08

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Solution

The fourth proportional to 510, 765.28 and 236.08 is: 354.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510 : 765.28 = 236.08 : x
  2. Step 2: Convert to fraction form
    510/765.28 = 236.08/x
  3. Step 3: Cross multiply
    510x = 765.28 × 236.08
  4. Step 4: Simplify right side
    510x = 180,667.30
  5. Step 5: Solve for x
    x = 180,667.30/510
  6. Step 6: Final answer
    x = 354.25

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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.