Home / 208,203.51-287,321.46-112,709.97

Finding the Fourth Proportional to 208,203.51, 287,321.46 and 112,709.97

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Solution

The fourth proportional to 208,203.51, 287,321.46 and 112,709.97 is: 155,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,203.51 : 287,321.46 = 112,709.97 : x
  2. Step 2: Convert to fraction form
    208,203.51/287,321.46 = 112,709.97/x
  3. Step 3: Cross multiply
    208,203.51x = 287,321.46 × 112,709.97
  4. Step 4: Simplify right side
    208,203.51x = 32,383,993,136.96
  5. Step 5: Solve for x
    x = 32,383,993,136.96/208,203.51
  6. Step 6: Final answer
    x = 155,540.09

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1.5x scale

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.