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Finding the Third Proportional to 130,158 and 199,966.50

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Solution

The third proportional to 130,158 and 199,966.50 is: 307,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,158 : 199,966.50 = 199,966.50 : x
  2. Step 2: Convert to fraction form
    130,158/199,966.50 = 199,966.50/x
  3. Step 3: Cross multiply
    130,158x = 199,966.50 × 199,966.50
  4. Step 4: Simplify right side
    130,158x = 39,986,601,122.25
  5. Step 5: Solve for x
    x = 39,986,601,122.25/130,158
  6. Step 6: Final answer
    x = 307,215.85

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.