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Finding the Third Proportional to 64,278 and 99,514

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Solution

The third proportional to 64,278 and 99,514 is: 154,065.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,278 : 99,514 = 99,514 : x
  2. Step 2: Convert to fraction form
    64,278/99,514 = 99,514/x
  3. Step 3: Cross multiply
    64,278x = 99,514 × 99,514
  4. Step 4: Simplify right side
    64,278x = 9,903,036,196
  5. Step 5: Solve for x
    x = 9,903,036,196/64,278
  6. Step 6: Final answer
    x = 154,065.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.