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Finding the Third Proportional to 358,310 and 517,963

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Solution

The third proportional to 358,310 and 517,963 is: 748,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,310 : 517,963 = 517,963 : x
  2. Step 2: Convert to fraction form
    358,310/517,963 = 517,963/x
  3. Step 3: Cross multiply
    358,310x = 517,963 × 517,963
  4. Step 4: Simplify right side
    358,310x = 268,285,669,369
  5. Step 5: Solve for x
    x = 268,285,669,369/358,310
  6. Step 6: Final answer
    x = 748,752.95

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.