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Finding the Third Proportional to 168,240 and 370,620

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Solution

The third proportional to 168,240 and 370,620 is: 816,447.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,240 : 370,620 = 370,620 : x
  2. Step 2: Convert to fraction form
    168,240/370,620 = 370,620/x
  3. Step 3: Cross multiply
    168,240x = 370,620 × 370,620
  4. Step 4: Simplify right side
    168,240x = 137,359,184,400
  5. Step 5: Solve for x
    x = 137,359,184,400/168,240
  6. Step 6: Final answer
    x = 816,447.84

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.