Home / 217,731.88-300,474.66-122,241.16

Finding the Fourth Proportional to 217,731.88, 300,474.66 and 122,241.16

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Solution

The fourth proportional to 217,731.88, 300,474.66 and 122,241.16 is: 168,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,731.88 : 300,474.66 = 122,241.16 : x
  2. Step 2: Convert to fraction form
    217,731.88/300,474.66 = 122,241.16/x
  3. Step 3: Cross multiply
    217,731.88x = 300,474.66 × 122,241.16
  4. Step 4: Simplify right side
    217,731.88x = 36,730,370,989.01
  5. Step 5: Solve for x
    x = 36,730,370,989.01/217,731.88
  6. Step 6: Final answer
    x = 168,695.42

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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.