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Finding the Third Proportional to 118,215 and 256,524

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Solution

The third proportional to 118,215 and 256,524 is: 556,651.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,215 : 256,524 = 256,524 : x
  2. Step 2: Convert to fraction form
    118,215/256,524 = 256,524/x
  3. Step 3: Cross multiply
    118,215x = 256,524 × 256,524
  4. Step 4: Simplify right side
    118,215x = 65,804,562,576
  5. Step 5: Solve for x
    x = 65,804,562,576/118,215
  6. Step 6: Final answer
    x = 556,651.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.