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Finding the Third Proportional to 58,468 and 128,851

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Solution

The third proportional to 58,468 and 128,851 is: 283,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,468 : 128,851 = 128,851 : x
  2. Step 2: Convert to fraction form
    58,468/128,851 = 128,851/x
  3. Step 3: Cross multiply
    58,468x = 128,851 × 128,851
  4. Step 4: Simplify right side
    58,468x = 16,602,580,201
  5. Step 5: Solve for x
    x = 16,602,580,201/58,468
  6. Step 6: Final answer
    x = 283,960.12

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.