Home / 208,310.26-287,468.53-112,816.96

Finding the Fourth Proportional to 208,310.26, 287,468.53 and 112,816.96

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Solution

The fourth proportional to 208,310.26, 287,468.53 and 112,816.96 is: 155,687.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,310.26 : 287,468.53 = 112,816.96 : x
  2. Step 2: Convert to fraction form
    208,310.26/287,468.53 = 112,816.96/x
  3. Step 3: Cross multiply
    208,310.26x = 287,468.53 × 112,816.96
  4. Step 4: Simplify right side
    208,310.26x = 32,431,325,650.27
  5. Step 5: Solve for x
    x = 32,431,325,650.27/208,310.26
  6. Step 6: Final answer
    x = 155,687.61

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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.