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Finding the Third Proportional to 115,588 and 248,420

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Solution

The third proportional to 115,588 and 248,420 is: 533,900.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,588 : 248,420 = 248,420 : x
  2. Step 2: Convert to fraction form
    115,588/248,420 = 248,420/x
  3. Step 3: Cross multiply
    115,588x = 248,420 × 248,420
  4. Step 4: Simplify right side
    115,588x = 61,712,496,400
  5. Step 5: Solve for x
    x = 61,712,496,400/115,588
  6. Step 6: Final answer
    x = 533,900.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.