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Finding the Third Proportional to 77,356 and 169,646

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Solution

The third proportional to 77,356 and 169,646 is: 372,043.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,356 : 169,646 = 169,646 : x
  2. Step 2: Convert to fraction form
    77,356/169,646 = 169,646/x
  3. Step 3: Cross multiply
    77,356x = 169,646 × 169,646
  4. Step 4: Simplify right side
    77,356x = 28,779,765,316
  5. Step 5: Solve for x
    x = 28,779,765,316/77,356
  6. Step 6: Final answer
    x = 372,043.09

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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.