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Finding the Third Proportional to 58,411 and 127,878

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Solution

The third proportional to 58,411 and 127,878 is: 279,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,411 : 127,878 = 127,878 : x
  2. Step 2: Convert to fraction form
    58,411/127,878 = 127,878/x
  3. Step 3: Cross multiply
    58,411x = 127,878 × 127,878
  4. Step 4: Simplify right side
    58,411x = 16,352,782,884
  5. Step 5: Solve for x
    x = 16,352,782,884/58,411
  6. Step 6: Final answer
    x = 279,960.67

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.