Home / 403,830.27-557,288-231,734.56

Finding the Fourth Proportional to 403,830.27, 557,288 and 231,734.56

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Solution

The fourth proportional to 403,830.27, 557,288 and 231,734.56 is: 319,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,830.27 : 557,288 = 231,734.56 : x
  2. Step 2: Convert to fraction form
    403,830.27/557,288 = 231,734.56/x
  3. Step 3: Cross multiply
    403,830.27x = 557,288 × 231,734.56
  4. Step 4: Simplify right side
    403,830.27x = 129,142,889,473.28
  5. Step 5: Solve for x
    x = 129,142,889,473.28/403,830.27
  6. Step 6: Final answer
    x = 319,794.97

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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.