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Finding the Third Proportional to 28,188 and 43,342

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Solution

The third proportional to 28,188 and 43,342 is: 66,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188 : 43,342 = 43,342 : x
  2. Step 2: Convert to fraction form
    28,188/43,342 = 43,342/x
  3. Step 3: Cross multiply
    28,188x = 43,342 × 43,342
  4. Step 4: Simplify right side
    28,188x = 1,878,528,964
  5. Step 5: Solve for x
    x = 1,878,528,964/28,188
  6. Step 6: Final answer
    x = 66,642.86

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.