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Finding the Third Proportional to 200,729 and 310,088

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Solution

The third proportional to 200,729 and 310,088 is: 479,026.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,729 : 310,088 = 310,088 : x
  2. Step 2: Convert to fraction form
    200,729/310,088 = 310,088/x
  3. Step 3: Cross multiply
    200,729x = 310,088 × 310,088
  4. Step 4: Simplify right side
    200,729x = 96,154,567,744
  5. Step 5: Solve for x
    x = 96,154,567,744/200,729
  6. Step 6: Final answer
    x = 479,026.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.