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Finding the Third Proportional to 64,509.75 and 137,767.50

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Solution

The third proportional to 64,509.75 and 137,767.50 is: 294,217.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,509.75 : 137,767.50 = 137,767.50 : x
  2. Step 2: Convert to fraction form
    64,509.75/137,767.50 = 137,767.50/x
  3. Step 3: Cross multiply
    64,509.75x = 137,767.50 × 137,767.50
  4. Step 4: Simplify right side
    64,509.75x = 18,979,884,056.25
  5. Step 5: Solve for x
    x = 18,979,884,056.25/64,509.75
  6. Step 6: Final answer
    x = 294,217.29

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.