Home / 399,815.46-551,745.81-230,082.66

Finding the Fourth Proportional to 399,815.46, 551,745.81 and 230,082.66

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Solution

The fourth proportional to 399,815.46, 551,745.81 and 230,082.66 is: 317,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,815.46 : 551,745.81 = 230,082.66 : x
  2. Step 2: Convert to fraction form
    399,815.46/551,745.81 = 230,082.66/x
  3. Step 3: Cross multiply
    399,815.46x = 551,745.81 × 230,082.66
  4. Step 4: Simplify right side
    399,815.46x = 126,947,143,608.66
  5. Step 5: Solve for x
    x = 126,947,143,608.66/399,815.46
  6. Step 6: Final answer
    x = 317,514.34

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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.