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Finding the Third Proportional to 63,428.63 and 139,412.06

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Solution

The third proportional to 63,428.63 and 139,412.06 is: 306,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,428.63 : 139,412.06 = 139,412.06 : x
  2. Step 2: Convert to fraction form
    63,428.63/139,412.06 = 139,412.06/x
  3. Step 3: Cross multiply
    63,428.63x = 139,412.06 × 139,412.06
  4. Step 4: Simplify right side
    63,428.63x = 19,435,723,170.50
  5. Step 5: Solve for x
    x = 19,435,723,170.50/63,428.63
  6. Step 6: Final answer
    x = 306,418.80

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.