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Finding the Third Proportional to 130,957.50 and 285,909

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Solution

The third proportional to 130,957.50 and 285,909 is: 624,202.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,957.50 : 285,909 = 285,909 : x
  2. Step 2: Convert to fraction form
    130,957.50/285,909 = 285,909/x
  3. Step 3: Cross multiply
    130,957.50x = 285,909 × 285,909
  4. Step 4: Simplify right side
    130,957.50x = 81,743,956,281
  5. Step 5: Solve for x
    x = 81,743,956,281/130,957.50
  6. Step 6: Final answer
    x = 624,202.17

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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.