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Finding the Third Proportional to 356.59 and 851.13

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Solution

The third proportional to 356.59 and 851.13 is: 2,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.59 : 851.13 = 851.13 : x
  2. Step 2: Convert to fraction form
    356.59/851.13 = 851.13/x
  3. Step 3: Cross multiply
    356.59x = 851.13 × 851.13
  4. Step 4: Simplify right side
    356.59x = 724,427.06
  5. Step 5: Solve for x
    x = 724,427.06/356.59
  6. Step 6: Final answer
    x = 2,031.54

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.