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Finding the Third Proportional to 133,074 and 287,471

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Solution

The third proportional to 133,074 and 287,471 is: 621,004.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,074 : 287,471 = 287,471 : x
  2. Step 2: Convert to fraction form
    133,074/287,471 = 287,471/x
  3. Step 3: Cross multiply
    133,074x = 287,471 × 287,471
  4. Step 4: Simplify right side
    133,074x = 82,639,575,841
  5. Step 5: Solve for x
    x = 82,639,575,841/133,074
  6. Step 6: Final answer
    x = 621,004.67

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.