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Finding the Third Proportional to 145,963 and 219,988.25

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Solution

The third proportional to 145,963 and 219,988.25 is: 331,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,963 : 219,988.25 = 219,988.25 : x
  2. Step 2: Convert to fraction form
    145,963/219,988.25 = 219,988.25/x
  3. Step 3: Cross multiply
    145,963x = 219,988.25 × 219,988.25
  4. Step 4: Simplify right side
    145,963x = 48,394,830,138.06
  5. Step 5: Solve for x
    x = 48,394,830,138.06/145,963
  6. Step 6: Final answer
    x = 331,555.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.