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Finding the Third Proportional to 69,265 and 151,490

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Solution

The third proportional to 69,265 and 151,490 is: 331,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,265 : 151,490 = 151,490 : x
  2. Step 2: Convert to fraction form
    69,265/151,490 = 151,490/x
  3. Step 3: Cross multiply
    69,265x = 151,490 × 151,490
  4. Step 4: Simplify right side
    69,265x = 22,949,220,100
  5. Step 5: Solve for x
    x = 22,949,220,100/69,265
  6. Step 6: Final answer
    x = 331,324.91

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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.