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Finding the Third Proportional to 258,588 and 548,276

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Solution

The third proportional to 258,588 and 548,276 is: 1,162,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,588 : 548,276 = 548,276 : x
  2. Step 2: Convert to fraction form
    258,588/548,276 = 548,276/x
  3. Step 3: Cross multiply
    258,588x = 548,276 × 548,276
  4. Step 4: Simplify right side
    258,588x = 300,606,572,176
  5. Step 5: Solve for x
    x = 300,606,572,176/258,588
  6. Step 6: Final answer
    x = 1,162,492.35

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.