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Finding the Third Proportional to 262,952 and 400,980

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Solution

The third proportional to 262,952 and 400,980 is: 611,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,952 : 400,980 = 400,980 : x
  2. Step 2: Convert to fraction form
    262,952/400,980 = 400,980/x
  3. Step 3: Cross multiply
    262,952x = 400,980 × 400,980
  4. Step 4: Simplify right side
    262,952x = 160,784,960,400
  5. Step 5: Solve for x
    x = 160,784,960,400/262,952
  6. Step 6: Final answer
    x = 611,461.26

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.