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Finding the Fourth Proportional to 287,661.62, 396,925.62 and 166,753.38

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Solution

The fourth proportional to 287,661.62, 396,925.62 and 166,753.38 is: 230,092.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,661.62 : 396,925.62 = 166,753.38 : x
  2. Step 2: Convert to fraction form
    287,661.62/396,925.62 = 166,753.38/x
  3. Step 3: Cross multiply
    287,661.62x = 396,925.62 × 166,753.38
  4. Step 4: Simplify right side
    287,661.62x = 66,188,688,743.60
  5. Step 5: Solve for x
    x = 66,188,688,743.60/287,661.62
  6. Step 6: Final answer
    x = 230,092.18

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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.