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Finding the Third Proportional to 163,986 and 245,490

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Solution

The third proportional to 163,986 and 245,490 is: 367,502.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,986 : 245,490 = 245,490 : x
  2. Step 2: Convert to fraction form
    163,986/245,490 = 245,490/x
  3. Step 3: Cross multiply
    163,986x = 245,490 × 245,490
  4. Step 4: Simplify right side
    163,986x = 60,265,340,100
  5. Step 5: Solve for x
    x = 60,265,340,100/163,986
  6. Step 6: Final answer
    x = 367,502.96

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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.