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Finding the Third Proportional to 145,913 and 208,654

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Solution

The third proportional to 145,913 and 208,654 is: 298,372.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,913 : 208,654 = 208,654 : x
  2. Step 2: Convert to fraction form
    145,913/208,654 = 208,654/x
  3. Step 3: Cross multiply
    145,913x = 208,654 × 208,654
  4. Step 4: Simplify right side
    145,913x = 43,536,491,716
  5. Step 5: Solve for x
    x = 43,536,491,716/145,913
  6. Step 6: Final answer
    x = 298,372.95

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.