Home / 403,964.90-557,449.88-222,640.74

Finding the Fourth Proportional to 403,964.90, 557,449.88 and 222,640.74

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Solution

The fourth proportional to 403,964.90, 557,449.88 and 222,640.74 is: 307,232.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,964.90 : 557,449.88 = 222,640.74 : x
  2. Step 2: Convert to fraction form
    403,964.90/557,449.88 = 222,640.74/x
  3. Step 3: Cross multiply
    403,964.90x = 557,449.88 × 222,640.74
  4. Step 4: Simplify right side
    403,964.90x = 124,111,053,796.11
  5. Step 5: Solve for x
    x = 124,111,053,796.11/403,964.90
  6. Step 6: Final answer
    x = 307,232.27

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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.