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Finding the Third Proportional to 147,958 and 319,565

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Solution

The third proportional to 147,958 and 319,565 is: 690,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,958 : 319,565 = 319,565 : x
  2. Step 2: Convert to fraction form
    147,958/319,565 = 319,565/x
  3. Step 3: Cross multiply
    147,958x = 319,565 × 319,565
  4. Step 4: Simplify right side
    147,958x = 102,121,789,225
  5. Step 5: Solve for x
    x = 102,121,789,225/147,958
  6. Step 6: Final answer
    x = 690,207.96

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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.