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Finding the Third Proportional to 340.13 and 841.31

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Solution

The third proportional to 340.13 and 841.31 is: 2,081.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.13 : 841.31 = 841.31 : x
  2. Step 2: Convert to fraction form
    340.13/841.31 = 841.31/x
  3. Step 3: Cross multiply
    340.13x = 841.31 × 841.31
  4. Step 4: Simplify right side
    340.13x = 707,806.72
  5. Step 5: Solve for x
    x = 707,806.72/340.13
  6. Step 6: Final answer
    x = 2,081.02

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Why These Related Problems?

These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.