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Finding the Third Proportional to 201,316 and 411,368

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Solution

The third proportional to 201,316 and 411,368 is: 840,587.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,316 : 411,368 = 411,368 : x
  2. Step 2: Convert to fraction form
    201,316/411,368 = 411,368/x
  3. Step 3: Cross multiply
    201,316x = 411,368 × 411,368
  4. Step 4: Simplify right side
    201,316x = 169,223,631,424
  5. Step 5: Solve for x
    x = 169,223,631,424/201,316
  6. Step 6: Final answer
    x = 840,587.09

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.