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Finding the Fourth Proportional to 287,404.97, 396,599.72 and 166,524.69

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Solution

The fourth proportional to 287,404.97, 396,599.72 and 166,524.69 is: 229,792.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,404.97 : 396,599.72 = 166,524.69 : x
  2. Step 2: Convert to fraction form
    287,404.97/396,599.72 = 166,524.69/x
  3. Step 3: Cross multiply
    287,404.97x = 396,599.72 × 166,524.69
  4. Step 4: Simplify right side
    287,404.97x = 66,043,644,594.46
  5. Step 5: Solve for x
    x = 66,043,644,594.46/287,404.97
  6. Step 6: Final answer
    x = 229,792.98

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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.