Home / 209,059.22-288,504.81-113,567.78

Finding the Fourth Proportional to 209,059.22, 288,504.81 and 113,567.78

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Solution

The fourth proportional to 209,059.22, 288,504.81 and 113,567.78 is: 156,725.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,059.22 : 288,504.81 = 113,567.78 : x
  2. Step 2: Convert to fraction form
    209,059.22/288,504.81 = 113,567.78/x
  3. Step 3: Cross multiply
    209,059.22x = 288,504.81 × 113,567.78
  4. Step 4: Simplify right side
    209,059.22x = 32,764,850,791.02
  5. Step 5: Solve for x
    x = 32,764,850,791.02/209,059.22
  6. Step 6: Final answer
    x = 156,725.21

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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.