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Finding the Third Proportional to 137,715 and 291,964

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Solution

The third proportional to 137,715 and 291,964 is: 618,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,715 : 291,964 = 291,964 : x
  2. Step 2: Convert to fraction form
    137,715/291,964 = 291,964/x
  3. Step 3: Cross multiply
    137,715x = 291,964 × 291,964
  4. Step 4: Simplify right side
    137,715x = 85,242,977,296
  5. Step 5: Solve for x
    x = 85,242,977,296/137,715
  6. Step 6: Final answer
    x = 618,981.06

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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.