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Finding the Third Proportional to 310,748.25 and 485,010

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Solution

The third proportional to 310,748.25 and 485,010 is: 756,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,748.25 : 485,010 = 485,010 : x
  2. Step 2: Convert to fraction form
    310,748.25/485,010 = 485,010/x
  3. Step 3: Cross multiply
    310,748.25x = 485,010 × 485,010
  4. Step 4: Simplify right side
    310,748.25x = 235,234,700,100
  5. Step 5: Solve for x
    x = 235,234,700,100/310,748.25
  6. Step 6: Final answer
    x = 756,994.45

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.