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Finding the Third Proportional to 223,378 and 340,332

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Solution

The third proportional to 223,378 and 340,332 is: 518,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,378 : 340,332 = 340,332 : x
  2. Step 2: Convert to fraction form
    223,378/340,332 = 340,332/x
  3. Step 3: Cross multiply
    223,378x = 340,332 × 340,332
  4. Step 4: Simplify right side
    223,378x = 115,825,870,224
  5. Step 5: Solve for x
    x = 115,825,870,224/223,378
  6. Step 6: Final answer
    x = 518,519.60

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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.