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Finding the Third Proportional to 130,322 and 285,554

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Solution

The third proportional to 130,322 and 285,554 is: 625,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,322 : 285,554 = 285,554 : x
  2. Step 2: Convert to fraction form
    130,322/285,554 = 285,554/x
  3. Step 3: Cross multiply
    130,322x = 285,554 × 285,554
  4. Step 4: Simplify right side
    130,322x = 81,541,086,916
  5. Step 5: Solve for x
    x = 81,541,086,916/130,322
  6. Step 6: Final answer
    x = 625,689.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.