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Finding the Third Proportional to 31,250 and 66,955

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Solution

The third proportional to 31,250 and 66,955 is: 143,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,250 : 66,955 = 66,955 : x
  2. Step 2: Convert to fraction form
    31,250/66,955 = 66,955/x
  3. Step 3: Cross multiply
    31,250x = 66,955 × 66,955
  4. Step 4: Simplify right side
    31,250x = 4,482,972,025
  5. Step 5: Solve for x
    x = 4,482,972,025/31,250
  6. Step 6: Final answer
    x = 143,455.10

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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.