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Finding the Fourth Proportional to 403,796.80, 557,264.37 and 222,508.63

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Solution

The fourth proportional to 403,796.80, 557,264.37 and 222,508.63 is: 307,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,796.80 : 557,264.37 = 222,508.63 : x
  2. Step 2: Convert to fraction form
    403,796.80/557,264.37 = 222,508.63/x
  3. Step 3: Cross multiply
    403,796.80x = 557,264.37 × 222,508.63
  4. Step 4: Simplify right side
    403,796.80x = 123,996,131,516.51
  5. Step 5: Solve for x
    x = 123,996,131,516.51/403,796.80
  6. Step 6: Final answer
    x = 307,075.57

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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.