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Finding the Third Proportional to 191,718 and 403,263

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Solution

The third proportional to 191,718 and 403,263 is: 848,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,718 : 403,263 = 403,263 : x
  2. Step 2: Convert to fraction form
    191,718/403,263 = 403,263/x
  3. Step 3: Cross multiply
    191,718x = 403,263 × 403,263
  4. Step 4: Simplify right side
    191,718x = 162,621,047,169
  5. Step 5: Solve for x
    x = 162,621,047,169/191,718
  6. Step 6: Final answer
    x = 848,230.46

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.