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Finding the Third Proportional to 400,164 and 610,257

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Solution

The third proportional to 400,164 and 610,257 is: 930,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,164 : 610,257 = 610,257 : x
  2. Step 2: Convert to fraction form
    400,164/610,257 = 610,257/x
  3. Step 3: Cross multiply
    400,164x = 610,257 × 610,257
  4. Step 4: Simplify right side
    400,164x = 372,413,606,049
  5. Step 5: Solve for x
    x = 372,413,606,049/400,164
  6. Step 6: Final answer
    x = 930,652.45

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.