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Finding the Third Proportional to 130,965 and 285,919

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Solution

The third proportional to 130,965 and 285,919 is: 624,210.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,965 : 285,919 = 285,919 : x
  2. Step 2: Convert to fraction form
    130,965/285,919 = 285,919/x
  3. Step 3: Cross multiply
    130,965x = 285,919 × 285,919
  4. Step 4: Simplify right side
    130,965x = 81,749,674,561
  5. Step 5: Solve for x
    x = 81,749,674,561/130,965
  6. Step 6: Final answer
    x = 624,210.09

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.