Home / 208,322.29-312,418.94-75,185.70

Finding the Fourth Proportional to 208,322.29, 312,418.94 and 75,185.70

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Solution

The fourth proportional to 208,322.29, 312,418.94 and 75,185.70 is: 112,755.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,322.29 : 312,418.94 = 75,185.70 : x
  2. Step 2: Convert to fraction form
    208,322.29/312,418.94 = 75,185.70/x
  3. Step 3: Cross multiply
    208,322.29x = 312,418.94 × 75,185.70
  4. Step 4: Simplify right side
    208,322.29x = 23,489,436,697.16
  5. Step 5: Solve for x
    x = 23,489,436,697.16/208,322.29
  6. Step 6: Final answer
    x = 112,755.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.