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Finding the Third Proportional to 153,236 and 324,715

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Solution

The third proportional to 153,236 and 324,715 is: 688,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,236 : 324,715 = 324,715 : x
  2. Step 2: Convert to fraction form
    153,236/324,715 = 324,715/x
  3. Step 3: Cross multiply
    153,236x = 324,715 × 324,715
  4. Step 4: Simplify right side
    153,236x = 105,439,831,225
  5. Step 5: Solve for x
    x = 105,439,831,225/153,236
  6. Step 6: Final answer
    x = 688,087.86

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.