Home / 206,213.28-309,434.72-111,441.60

Finding the Fourth Proportional to 206,213.28, 309,434.72 and 111,441.60

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Solution

The fourth proportional to 206,213.28, 309,434.72 and 111,441.60 is: 167,224.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,213.28 : 309,434.72 = 111,441.60 : x
  2. Step 2: Convert to fraction form
    206,213.28/309,434.72 = 111,441.60/x
  3. Step 3: Cross multiply
    206,213.28x = 309,434.72 × 111,441.60
  4. Step 4: Simplify right side
    206,213.28x = 34,483,900,292.35
  5. Step 5: Solve for x
    x = 34,483,900,292.35/206,213.28
  6. Step 6: Final answer
    x = 167,224.44

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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.