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Finding the Third Proportional to 143,091 and 310,765.50

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Solution

The third proportional to 143,091 and 310,765.50 is: 674,921.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,091 : 310,765.50 = 310,765.50 : x
  2. Step 2: Convert to fraction form
    143,091/310,765.50 = 310,765.50/x
  3. Step 3: Cross multiply
    143,091x = 310,765.50 × 310,765.50
  4. Step 4: Simplify right side
    143,091x = 96,575,195,990.25
  5. Step 5: Solve for x
    x = 96,575,195,990.25/143,091
  6. Step 6: Final answer
    x = 674,921.53

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.