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Finding the Fourth Proportional to 300,261.11, 414,510.26 and 172,912.10

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Solution

The fourth proportional to 300,261.11, 414,510.26 and 172,912.10 is: 238,705.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,261.11 : 414,510.26 = 172,912.10 : x
  2. Step 2: Convert to fraction form
    300,261.11/414,510.26 = 172,912.10/x
  3. Step 3: Cross multiply
    300,261.11x = 414,510.26 × 172,912.10
  4. Step 4: Simplify right side
    300,261.11x = 71,673,836,591.03
  5. Step 5: Solve for x
    x = 71,673,836,591.03/300,261.11
  6. Step 6: Final answer
    x = 238,705.03

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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.