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Finding the Third Proportional to 113,222 and 145,209

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Solution

The third proportional to 113,222 and 145,209 is: 186,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,222 : 145,209 = 145,209 : x
  2. Step 2: Convert to fraction form
    113,222/145,209 = 145,209/x
  3. Step 3: Cross multiply
    113,222x = 145,209 × 145,209
  4. Step 4: Simplify right side
    113,222x = 21,085,653,681
  5. Step 5: Solve for x
    x = 21,085,653,681/113,222
  6. Step 6: Final answer
    x = 186,232.83

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.