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Finding the Third Proportional to 156,153 and 335,985

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Solution

The third proportional to 156,153 and 335,985 is: 722,918.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153 : 335,985 = 335,985 : x
  2. Step 2: Convert to fraction form
    156,153/335,985 = 335,985/x
  3. Step 3: Cross multiply
    156,153x = 335,985 × 335,985
  4. Step 4: Simplify right side
    156,153x = 112,885,920,225
  5. Step 5: Solve for x
    x = 112,885,920,225/156,153
  6. Step 6: Final answer
    x = 722,918.68

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.