Home / 209,072.73-288,520.71-113,579.50

Finding the Fourth Proportional to 209,072.73, 288,520.71 and 113,579.50

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Solution

The fourth proportional to 209,072.73, 288,520.71 and 113,579.50 is: 156,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,072.73 : 288,520.71 = 113,579.50 : x
  2. Step 2: Convert to fraction form
    209,072.73/288,520.71 = 113,579.50/x
  3. Step 3: Cross multiply
    209,072.73x = 288,520.71 × 113,579.50
  4. Step 4: Simplify right side
    209,072.73x = 32,770,037,694.64
  5. Step 5: Solve for x
    x = 32,770,037,694.64/209,072.73
  6. Step 6: Final answer
    x = 156,739.90

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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.