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Finding the Third Proportional to 516.85 and 1,106.31

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Solution

The third proportional to 516.85 and 1,106.31 is: 2,368.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    516.85 : 1,106.31 = 1,106.31 : x
  2. Step 2: Convert to fraction form
    516.85/1,106.31 = 1,106.31/x
  3. Step 3: Cross multiply
    516.85x = 1,106.31 × 1,106.31
  4. Step 4: Simplify right side
    516.85x = 1,223,931.67
  5. Step 5: Solve for x
    x = 1,223,931.67/516.85
  6. Step 6: Final answer
    x = 2,368.06

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.