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Finding the Fourth Proportional to 287,725.33, 431,620.31 and 234,867.26

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Solution

The fourth proportional to 287,725.33, 431,620.31 and 234,867.26 is: 352,327.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,725.33 : 431,620.31 = 234,867.26 : x
  2. Step 2: Convert to fraction form
    287,725.33/431,620.31 = 234,867.26/x
  3. Step 3: Cross multiply
    287,725.33x = 431,620.31 × 234,867.26
  4. Step 4: Simplify right side
    287,725.33x = 101,373,481,236.27
  5. Step 5: Solve for x
    x = 101,373,481,236.27/287,725.33
  6. Step 6: Final answer
    x = 352,327.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.