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Finding the Third Proportional to 200,724 and 302,787

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Solution

The third proportional to 200,724 and 302,787 is: 456,746.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,724 : 302,787 = 302,787 : x
  2. Step 2: Convert to fraction form
    200,724/302,787 = 302,787/x
  3. Step 3: Cross multiply
    200,724x = 302,787 × 302,787
  4. Step 4: Simplify right side
    200,724x = 91,679,967,369
  5. Step 5: Solve for x
    x = 91,679,967,369/200,724
  6. Step 6: Final answer
    x = 456,746.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.