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Finding the Fourth Proportional to 401,787.52, 554,840.22 and 258,793.36

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Solution

The fourth proportional to 401,787.52, 554,840.22 and 258,793.36 is: 357,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,787.52 : 554,840.22 = 258,793.36 : x
  2. Step 2: Convert to fraction form
    401,787.52/554,840.22 = 258,793.36/x
  3. Step 3: Cross multiply
    401,787.52x = 554,840.22 × 258,793.36
  4. Step 4: Simplify right side
    401,787.52x = 143,588,964,796.94
  5. Step 5: Solve for x
    x = 143,588,964,796.94/401,787.52
  6. Step 6: Final answer
    x = 357,375.37

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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.