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Finding the Third Proportional to 60,447 and 129,814.50

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Solution

The third proportional to 60,447 and 129,814.50 is: 278,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,447 : 129,814.50 = 129,814.50 : x
  2. Step 2: Convert to fraction form
    60,447/129,814.50 = 129,814.50/x
  3. Step 3: Cross multiply
    60,447x = 129,814.50 × 129,814.50
  4. Step 4: Simplify right side
    60,447x = 16,851,804,410.25
  5. Step 5: Solve for x
    x = 16,851,804,410.25/60,447
  6. Step 6: Final answer
    x = 278,786.45

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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.