Home / 208,000.12-287,015.46-117,350.80

Finding the Fourth Proportional to 208,000.12, 287,015.46 and 117,350.80

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Solution

The fourth proportional to 208,000.12, 287,015.46 and 117,350.80 is: 161,930.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,000.12 : 287,015.46 = 117,350.80 : x
  2. Step 2: Convert to fraction form
    208,000.12/287,015.46 = 117,350.80/x
  3. Step 3: Cross multiply
    208,000.12x = 287,015.46 × 117,350.80
  4. Step 4: Simplify right side
    208,000.12x = 33,681,493,843.37
  5. Step 5: Solve for x
    x = 33,681,493,843.37/208,000.12
  6. Step 6: Final answer
    x = 161,930.17

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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.