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Finding the Third Proportional to 253,348 and 401,148

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Solution

The third proportional to 253,348 and 401,148 is: 635,172.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,348 : 401,148 = 401,148 : x
  2. Step 2: Convert to fraction form
    253,348/401,148 = 401,148/x
  3. Step 3: Cross multiply
    253,348x = 401,148 × 401,148
  4. Step 4: Simplify right side
    253,348x = 160,919,717,904
  5. Step 5: Solve for x
    x = 160,919,717,904/253,348
  6. Step 6: Final answer
    x = 635,172.64

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.