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Finding the Fourth Proportional to 287,398.32, 396,573.73 and 166,537.41

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Solution

The fourth proportional to 287,398.32, 396,573.73 and 166,537.41 is: 229,800.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,398.32 : 396,573.73 = 166,537.41 : x
  2. Step 2: Convert to fraction form
    287,398.32/396,573.73 = 166,537.41/x
  3. Step 3: Cross multiply
    287,398.32x = 396,573.73 × 166,537.41
  4. Step 4: Simplify right side
    287,398.32x = 66,044,361,868.24
  5. Step 5: Solve for x
    x = 66,044,361,868.24/287,398.32
  6. Step 6: Final answer
    x = 229,800.79

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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.