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Finding the Fourth Proportional to 149,290.72, 222,843.82 and 131,576.64

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Solution

The fourth proportional to 149,290.72, 222,843.82 and 131,576.64 is: 196,402.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,290.72 : 222,843.82 = 131,576.64 : x
  2. Step 2: Convert to fraction form
    149,290.72/222,843.82 = 131,576.64/x
  3. Step 3: Cross multiply
    149,290.72x = 222,843.82 × 131,576.64
  4. Step 4: Simplify right side
    149,290.72x = 29,321,041,080.36
  5. Step 5: Solve for x
    x = 29,321,041,080.36/149,290.72
  6. Step 6: Final answer
    x = 196,402.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.