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Finding the Third Proportional to 156,778 and 336,020

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Solution

The third proportional to 156,778 and 336,020 is: 720,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778 : 336,020 = 336,020 : x
  2. Step 2: Convert to fraction form
    156,778/336,020 = 336,020/x
  3. Step 3: Cross multiply
    156,778x = 336,020 × 336,020
  4. Step 4: Simplify right side
    156,778x = 112,909,440,400
  5. Step 5: Solve for x
    x = 112,909,440,400/156,778
  6. Step 6: Final answer
    x = 720,186.76

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These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.