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Finding the Fourth Proportional to 208,183.48, 287,293.26 and 112,689.88

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Solution

The fourth proportional to 208,183.48, 287,293.26 and 112,689.88 is: 155,512.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,183.48 : 287,293.26 = 112,689.88 : x
  2. Step 2: Convert to fraction form
    208,183.48/287,293.26 = 112,689.88/x
  3. Step 3: Cross multiply
    208,183.48x = 287,293.26 × 112,689.88
  4. Step 4: Simplify right side
    208,183.48x = 32,375,042,994.21
  5. Step 5: Solve for x
    x = 32,375,042,994.21/208,183.48
  6. Step 6: Final answer
    x = 155,512.07

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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.