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Finding the Fourth Proportional to 287,566.35, 396,843.15 and 166,779.27

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Solution

The fourth proportional to 287,566.35, 396,843.15 and 166,779.27 is: 230,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,566.35 : 396,843.15 = 166,779.27 : x
  2. Step 2: Convert to fraction form
    287,566.35/396,843.15 = 166,779.27/x
  3. Step 3: Cross multiply
    287,566.35x = 396,843.15 × 166,779.27
  4. Step 4: Simplify right side
    287,566.35x = 66,185,210,861.50
  5. Step 5: Solve for x
    x = 66,185,210,861.50/287,566.35
  6. Step 6: Final answer
    x = 230,156.31

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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.