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Finding the Fourth Proportional to 403,957.43, 557,461.11 and 222,672.38

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Solution

The fourth proportional to 403,957.43, 557,461.11 and 222,672.38 is: 307,287.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,957.43 : 557,461.11 = 222,672.38 : x
  2. Step 2: Convert to fraction form
    403,957.43/557,461.11 = 222,672.38/x
  3. Step 3: Cross multiply
    403,957.43x = 557,461.11 × 222,672.38
  4. Step 4: Simplify right side
    403,957.43x = 124,131,192,259.34
  5. Step 5: Solve for x
    x = 124,131,192,259.34/403,957.43
  6. Step 6: Final answer
    x = 307,287.80

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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.