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Finding the Third Proportional to 355,135 and 499,519

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Solution

The third proportional to 355,135 and 499,519 is: 702,603.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,135 : 499,519 = 499,519 : x
  2. Step 2: Convert to fraction form
    355,135/499,519 = 499,519/x
  3. Step 3: Cross multiply
    355,135x = 499,519 × 499,519
  4. Step 4: Simplify right side
    355,135x = 249,519,231,361
  5. Step 5: Solve for x
    x = 249,519,231,361/355,135
  6. Step 6: Final answer
    x = 702,603.89

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.