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Finding the Third Proportional to 156,964 and 343,069

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Solution

The third proportional to 156,964 and 343,069 is: 749,830.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,964 : 343,069 = 343,069 : x
  2. Step 2: Convert to fraction form
    156,964/343,069 = 343,069/x
  3. Step 3: Cross multiply
    156,964x = 343,069 × 343,069
  4. Step 4: Simplify right side
    156,964x = 117,696,338,761
  5. Step 5: Solve for x
    x = 117,696,338,761/156,964
  6. Step 6: Final answer
    x = 749,830.14

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.