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Finding the Fourth Proportional to 287,560.48, 396,835.03 and 166,773.38

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Solution

The fourth proportional to 287,560.48, 396,835.03 and 166,773.38 is: 230,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,560.48 : 396,835.03 = 166,773.38 : x
  2. Step 2: Convert to fraction form
    287,560.48/396,835.03 = 166,773.38/x
  3. Step 3: Cross multiply
    287,560.48x = 396,835.03 × 166,773.38
  4. Step 4: Simplify right side
    287,560.48x = 66,181,517,271.33
  5. Step 5: Solve for x
    x = 66,181,517,271.33/287,560.48
  6. Step 6: Final answer
    x = 230,148.17

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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.