Home / 209,200.11-313,455.24-120,528.15

Finding the Fourth Proportional to 209,200.11, 313,455.24 and 120,528.15

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Solution

The fourth proportional to 209,200.11, 313,455.24 and 120,528.15 is: 180,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,200.11 : 313,455.24 = 120,528.15 : x
  2. Step 2: Convert to fraction form
    209,200.11/313,455.24 = 120,528.15/x
  3. Step 3: Cross multiply
    209,200.11x = 313,455.24 × 120,528.15
  4. Step 4: Simplify right side
    209,200.11x = 37,780,180,185.01
  5. Step 5: Solve for x
    x = 37,780,180,185.01/209,200.11
  6. Step 6: Final answer
    x = 180,593.50

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1.5x scale

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.