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Finding the Third Proportional to 162,815 and 347,136

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Solution

The third proportional to 162,815 and 347,136 is: 740,124.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,815 : 347,136 = 347,136 : x
  2. Step 2: Convert to fraction form
    162,815/347,136 = 347,136/x
  3. Step 3: Cross multiply
    162,815x = 347,136 × 347,136
  4. Step 4: Simplify right side
    162,815x = 120,503,402,496
  5. Step 5: Solve for x
    x = 120,503,402,496/162,815
  6. Step 6: Final answer
    x = 740,124.70

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.