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Finding the Third Proportional to 132,220.50 and 290,683.50

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Solution

The third proportional to 132,220.50 and 290,683.50 is: 639,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,220.50 : 290,683.50 = 290,683.50 : x
  2. Step 2: Convert to fraction form
    132,220.50/290,683.50 = 290,683.50/x
  3. Step 3: Cross multiply
    132,220.50x = 290,683.50 × 290,683.50
  4. Step 4: Simplify right side
    132,220.50x = 84,496,897,172.25
  5. Step 5: Solve for x
    x = 84,496,897,172.25/132,220.50
  6. Step 6: Final answer
    x = 639,060.49

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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.