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Finding the Third Proportional to 272,940 and 401,607

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Solution

The third proportional to 272,940 and 401,607 is: 590,929.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,940 : 401,607 = 401,607 : x
  2. Step 2: Convert to fraction form
    272,940/401,607 = 401,607/x
  3. Step 3: Cross multiply
    272,940x = 401,607 × 401,607
  4. Step 4: Simplify right side
    272,940x = 161,288,182,449
  5. Step 5: Solve for x
    x = 161,288,182,449/272,940
  6. Step 6: Final answer
    x = 590,929.08

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.