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Finding the Third Proportional to 65,308.78 and 143,073.84

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Solution

The third proportional to 65,308.78 and 143,073.84 is: 313,436.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,308.78 : 143,073.84 = 143,073.84 : x
  2. Step 2: Convert to fraction form
    65,308.78/143,073.84 = 143,073.84/x
  3. Step 3: Cross multiply
    65,308.78x = 143,073.84 × 143,073.84
  4. Step 4: Simplify right side
    65,308.78x = 20,470,124,765.40
  5. Step 5: Solve for x
    x = 20,470,124,765.40/65,308.78
  6. Step 6: Final answer
    x = 313,436.02

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.