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Finding the Third Proportional to 109,378 and 235,830

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Solution

The third proportional to 109,378 and 235,830 is: 508,473.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378 : 235,830 = 235,830 : x
  2. Step 2: Convert to fraction form
    109,378/235,830 = 235,830/x
  3. Step 3: Cross multiply
    109,378x = 235,830 × 235,830
  4. Step 4: Simplify right side
    109,378x = 55,615,788,900
  5. Step 5: Solve for x
    x = 55,615,788,900/109,378
  6. Step 6: Final answer
    x = 508,473.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.