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Finding the Third Proportional to 141,907 and 213,459

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Solution

The third proportional to 141,907 and 213,459 is: 321,088.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,907 : 213,459 = 213,459 : x
  2. Step 2: Convert to fraction form
    141,907/213,459 = 213,459/x
  3. Step 3: Cross multiply
    141,907x = 213,459 × 213,459
  4. Step 4: Simplify right side
    141,907x = 45,564,744,681
  5. Step 5: Solve for x
    x = 45,564,744,681/141,907
  6. Step 6: Final answer
    x = 321,088.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.