Home / 403,742.16-557,141.76-222,418.44

Finding the Fourth Proportional to 403,742.16, 557,141.76 and 222,418.44

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Solution

The fourth proportional to 403,742.16, 557,141.76 and 222,418.44 is: 306,925.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,742.16 : 557,141.76 = 222,418.44 : x
  2. Step 2: Convert to fraction form
    403,742.16/557,141.76 = 222,418.44/x
  3. Step 3: Cross multiply
    403,742.16x = 557,141.76 × 222,418.44
  4. Step 4: Simplify right side
    403,742.16x = 123,918,601,118.05
  5. Step 5: Solve for x
    x = 123,918,601,118.05/403,742.16
  6. Step 6: Final answer
    x = 306,925.10

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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.