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Finding the Third Proportional to 156,216 and 340,944

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Solution

The third proportional to 156,216 and 340,944 is: 744,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,216 : 340,944 = 340,944 : x
  2. Step 2: Convert to fraction form
    156,216/340,944 = 340,944/x
  3. Step 3: Cross multiply
    156,216x = 340,944 × 340,944
  4. Step 4: Simplify right side
    156,216x = 116,242,811,136
  5. Step 5: Solve for x
    x = 116,242,811,136/156,216
  6. Step 6: Final answer
    x = 744,115.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.