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Finding the Third Proportional to 345,816 and 506,256

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Solution

The third proportional to 345,816 and 506,256 is: 741,131.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,816 : 506,256 = 506,256 : x
  2. Step 2: Convert to fraction form
    345,816/506,256 = 506,256/x
  3. Step 3: Cross multiply
    345,816x = 506,256 × 506,256
  4. Step 4: Simplify right side
    345,816x = 256,295,137,536
  5. Step 5: Solve for x
    x = 256,295,137,536/345,816
  6. Step 6: Final answer
    x = 741,131.52

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.