Home / 403,939.72-557,468.94-222,684.04

Finding the Fourth Proportional to 403,939.72, 557,468.94 and 222,684.04

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Solution

The fourth proportional to 403,939.72, 557,468.94 and 222,684.04 is: 307,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,939.72 : 557,468.94 = 222,684.04 : x
  2. Step 2: Convert to fraction form
    403,939.72/557,468.94 = 222,684.04/x
  3. Step 3: Cross multiply
    403,939.72x = 557,468.94 × 222,684.04
  4. Step 4: Simplify right side
    403,939.72x = 124,139,435,733.72
  5. Step 5: Solve for x
    x = 124,139,435,733.72/403,939.72
  6. Step 6: Final answer
    x = 307,321.69

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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.