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Finding the Fourth Proportional to 300,119.97, 414,178.82 and 172,836.57

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Solution

The fourth proportional to 300,119.97, 414,178.82 and 172,836.57 is: 238,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,119.97 : 414,178.82 = 172,836.57 : x
  2. Step 2: Convert to fraction form
    300,119.97/414,178.82 = 172,836.57/x
  3. Step 3: Cross multiply
    300,119.97x = 414,178.82 × 172,836.57
  4. Step 4: Simplify right side
    300,119.97x = 71,585,245,751.26
  5. Step 5: Solve for x
    x = 71,585,245,751.26/300,119.97
  6. Step 6: Final answer
    x = 238,522.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.