Home / 217,731.24-300,461.40-122,241.96

Finding the Fourth Proportional to 217,731.24, 300,461.40 and 122,241.96

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Solution

The fourth proportional to 217,731.24, 300,461.40 and 122,241.96 is: 168,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,731.24 : 300,461.40 = 122,241.96 : x
  2. Step 2: Convert to fraction form
    217,731.24/300,461.40 = 122,241.96/x
  3. Step 3: Cross multiply
    217,731.24x = 300,461.40 × 122,241.96
  4. Step 4: Simplify right side
    217,731.24x = 36,728,990,440.34
  5. Step 5: Solve for x
    x = 36,728,990,440.34/217,731.24
  6. Step 6: Final answer
    x = 168,689.58

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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.