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Finding the Third Proportional to 45,319 and 97,931

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Solution

The third proportional to 45,319 and 97,931 is: 211,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,319 : 97,931 = 97,931 : x
  2. Step 2: Convert to fraction form
    45,319/97,931 = 97,931/x
  3. Step 3: Cross multiply
    45,319x = 97,931 × 97,931
  4. Step 4: Simplify right side
    45,319x = 9,590,480,761
  5. Step 5: Solve for x
    x = 9,590,480,761/45,319
  6. Step 6: Final answer
    x = 211,621.63

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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.