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Finding the Third Proportional to 72,913 and 157,207

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Solution

The third proportional to 72,913 and 157,207 is: 338,952.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,913 : 157,207 = 157,207 : x
  2. Step 2: Convert to fraction form
    72,913/157,207 = 157,207/x
  3. Step 3: Cross multiply
    72,913x = 157,207 × 157,207
  4. Step 4: Simplify right side
    72,913x = 24,714,040,849
  5. Step 5: Solve for x
    x = 24,714,040,849/72,913
  6. Step 6: Final answer
    x = 338,952.46

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.