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Finding the Third Proportional to 238,466 and 505,354

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Solution

The third proportional to 238,466 and 505,354 is: 1,070,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,466 : 505,354 = 505,354 : x
  2. Step 2: Convert to fraction form
    238,466/505,354 = 505,354/x
  3. Step 3: Cross multiply
    238,466x = 505,354 × 505,354
  4. Step 4: Simplify right side
    238,466x = 255,382,665,316
  5. Step 5: Solve for x
    x = 255,382,665,316/238,466
  6. Step 6: Final answer
    x = 1,070,939.53

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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.