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Finding the Fourth Proportional to 531.10, 796.35 and 206.09

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Solution

The fourth proportional to 531.10, 796.35 and 206.09 is: 309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.10 : 796.35 = 206.09 : x
  2. Step 2: Convert to fraction form
    531.10/796.35 = 206.09/x
  3. Step 3: Cross multiply
    531.10x = 796.35 × 206.09
  4. Step 4: Simplify right side
    531.10x = 164,119.26
  5. Step 5: Solve for x
    x = 164,119.26/531.10
  6. Step 6: Final answer
    x = 309.02

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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.