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Finding the Third Proportional to 124,900 and 190,459

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Solution

The third proportional to 124,900 and 190,459 is: 290,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,900 : 190,459 = 190,459 : x
  2. Step 2: Convert to fraction form
    124,900/190,459 = 190,459/x
  3. Step 3: Cross multiply
    124,900x = 190,459 × 190,459
  4. Step 4: Simplify right side
    124,900x = 36,274,630,681
  5. Step 5: Solve for x
    x = 36,274,630,681/124,900
  6. Step 6: Final answer
    x = 290,429.39

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.