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Finding the Third Proportional to 40,317 and 85,438.50

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Solution

The third proportional to 40,317 and 85,438.50 is: 181,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,317 : 85,438.50 = 85,438.50 : x
  2. Step 2: Convert to fraction form
    40,317/85,438.50 = 85,438.50/x
  3. Step 3: Cross multiply
    40,317x = 85,438.50 × 85,438.50
  4. Step 4: Simplify right side
    40,317x = 7,299,737,282.25
  5. Step 5: Solve for x
    x = 7,299,737,282.25/40,317
  6. Step 6: Final answer
    x = 181,058.54

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.