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Finding the Third Proportional to 345.81 and 511.94

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Solution

The third proportional to 345.81 and 511.94 is: 757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.81 : 511.94 = 511.94 : x
  2. Step 2: Convert to fraction form
    345.81/511.94 = 511.94/x
  3. Step 3: Cross multiply
    345.81x = 511.94 × 511.94
  4. Step 4: Simplify right side
    345.81x = 262,080.00
  5. Step 5: Solve for x
    x = 262,080.00/345.81
  6. Step 6: Final answer
    x = 757.87

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.