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Finding the Fourth Proportional to 208,291.06, 287,441.94 and 112,797.91

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Solution

The fourth proportional to 208,291.06, 287,441.94 and 112,797.91 is: 155,661.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,291.06 : 287,441.94 = 112,797.91 : x
  2. Step 2: Convert to fraction form
    208,291.06/287,441.94 = 112,797.91/x
  3. Step 3: Cross multiply
    208,291.06x = 287,441.94 × 112,797.91
  4. Step 4: Simplify right side
    208,291.06x = 32,422,850,078.35
  5. Step 5: Solve for x
    x = 32,422,850,078.35/208,291.06
  6. Step 6: Final answer
    x = 155,661.27

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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.