Home / 403,930.30-557,427.72-222,649.33

Finding the Fourth Proportional to 403,930.30, 557,427.72 and 222,649.33

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Solution

The fourth proportional to 403,930.30, 557,427.72 and 222,649.33 is: 307,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,930.30 : 557,427.72 = 222,649.33 : x
  2. Step 2: Convert to fraction form
    403,930.30/557,427.72 = 222,649.33/x
  3. Step 3: Cross multiply
    403,930.30x = 557,427.72 × 222,649.33
  4. Step 4: Simplify right side
    403,930.30x = 124,110,908,381.43
  5. Step 5: Solve for x
    x = 124,110,908,381.43/403,930.30
  6. Step 6: Final answer
    x = 307,258.23

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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.