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Finding the Fourth Proportional to 208,590.07, 287,860.37 and 117,944.06

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Solution

The fourth proportional to 208,590.07, 287,860.37 and 117,944.06 is: 162,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,590.07 : 287,860.37 = 117,944.06 : x
  2. Step 2: Convert to fraction form
    208,590.07/287,860.37 = 117,944.06/x
  3. Step 3: Cross multiply
    208,590.07x = 287,860.37 × 117,944.06
  4. Step 4: Simplify right side
    208,590.07x = 33,951,420,750.90
  5. Step 5: Solve for x
    x = 33,951,420,750.90/208,590.07
  6. Step 6: Final answer
    x = 162,766.24

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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.