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Finding the Third Proportional to 63,731.81 and 139,740.19

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Solution

The third proportional to 63,731.81 and 139,740.19 is: 306,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,731.81 : 139,740.19 = 139,740.19 : x
  2. Step 2: Convert to fraction form
    63,731.81/139,740.19 = 139,740.19/x
  3. Step 3: Cross multiply
    63,731.81x = 139,740.19 × 139,740.19
  4. Step 4: Simplify right side
    63,731.81x = 19,527,320,002.54
  5. Step 5: Solve for x
    x = 19,527,320,002.54/63,731.81
  6. Step 6: Final answer
    x = 306,398.32

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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.