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Finding the Third Proportional to 71,646.75 and 153,859.50

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Solution

The third proportional to 71,646.75 and 153,859.50 is: 330,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,646.75 : 153,859.50 = 153,859.50 : x
  2. Step 2: Convert to fraction form
    71,646.75/153,859.50 = 153,859.50/x
  3. Step 3: Cross multiply
    71,646.75x = 153,859.50 × 153,859.50
  4. Step 4: Simplify right side
    71,646.75x = 23,672,745,740.25
  5. Step 5: Solve for x
    x = 23,672,745,740.25/71,646.75
  6. Step 6: Final answer
    x = 330,409.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.