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Finding the Third Proportional to 64,660.78 and 141,350.06

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Solution

The third proportional to 64,660.78 and 141,350.06 is: 308,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.78 : 141,350.06 = 141,350.06 : x
  2. Step 2: Convert to fraction form
    64,660.78/141,350.06 = 141,350.06/x
  3. Step 3: Cross multiply
    64,660.78x = 141,350.06 × 141,350.06
  4. Step 4: Simplify right side
    64,660.78x = 19,979,840,168.75
  5. Step 5: Solve for x
    x = 19,979,840,168.75/64,660.78
  6. Step 6: Final answer
    x = 308,994.72

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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.