Home / 282,121.22-389,435.64-191,517.68

Finding the Fourth Proportional to 282,121.22, 389,435.64 and 191,517.68

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Solution

The fourth proportional to 282,121.22, 389,435.64 and 191,517.68 is: 264,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,121.22 : 389,435.64 = 191,517.68 : x
  2. Step 2: Convert to fraction form
    282,121.22/389,435.64 = 191,517.68/x
  3. Step 3: Cross multiply
    282,121.22x = 389,435.64 × 191,517.68
  4. Step 4: Simplify right side
    282,121.22x = 74,583,810,282.12
  5. Step 5: Solve for x
    x = 74,583,810,282.12/282,121.22
  6. Step 6: Final answer
    x = 264,367.96

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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.