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Finding the Third Proportional to 174,880 and 256,520

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Solution

The third proportional to 174,880 and 256,520 is: 376,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,880 : 256,520 = 256,520 : x
  2. Step 2: Convert to fraction form
    174,880/256,520 = 256,520/x
  3. Step 3: Cross multiply
    174,880x = 256,520 × 256,520
  4. Step 4: Simplify right side
    174,880x = 65,802,510,400
  5. Step 5: Solve for x
    x = 65,802,510,400/174,880
  6. Step 6: Final answer
    x = 376,272.36

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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.