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Finding the Third Proportional to 63,715.25 and 138,506.50

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Solution

The third proportional to 63,715.25 and 138,506.50 is: 301,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,715.25 : 138,506.50 = 138,506.50 : x
  2. Step 2: Convert to fraction form
    63,715.25/138,506.50 = 138,506.50/x
  3. Step 3: Cross multiply
    63,715.25x = 138,506.50 × 138,506.50
  4. Step 4: Simplify right side
    63,715.25x = 19,184,050,542.25
  5. Step 5: Solve for x
    x = 19,184,050,542.25/63,715.25
  6. Step 6: Final answer
    x = 301,090.41

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.