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Finding the Third Proportional to 187,884 and 290,574

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Solution

The third proportional to 187,884 and 290,574 is: 449,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,884 : 290,574 = 290,574 : x
  2. Step 2: Convert to fraction form
    187,884/290,574 = 290,574/x
  3. Step 3: Cross multiply
    187,884x = 290,574 × 290,574
  4. Step 4: Simplify right side
    187,884x = 84,433,249,476
  5. Step 5: Solve for x
    x = 84,433,249,476/187,884
  6. Step 6: Final answer
    x = 449,390.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.