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Finding the Third Proportional to 166,381 and 249,490

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Solution

The third proportional to 166,381 and 249,490 is: 374,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,381 : 249,490 = 249,490 : x
  2. Step 2: Convert to fraction form
    166,381/249,490 = 249,490/x
  3. Step 3: Cross multiply
    166,381x = 249,490 × 249,490
  4. Step 4: Simplify right side
    166,381x = 62,245,260,100
  5. Step 5: Solve for x
    x = 62,245,260,100/166,381
  6. Step 6: Final answer
    x = 374,112.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.