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Finding the Fourth Proportional to 287,400.46, 396,612.75 and 166,611.77

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Solution

The fourth proportional to 287,400.46, 396,612.75 and 166,611.77 is: 229,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,400.46 : 396,612.75 = 166,611.77 : x
  2. Step 2: Convert to fraction form
    287,400.46/396,612.75 = 166,611.77/x
  3. Step 3: Cross multiply
    287,400.46x = 396,612.75 × 166,611.77
  4. Step 4: Simplify right side
    287,400.46x = 66,080,352,282.07
  5. Step 5: Solve for x
    x = 66,080,352,282.07/287,400.46
  6. Step 6: Final answer
    x = 229,924.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.