Home / 212,716.20-319,074.30-133,984.20

Finding the Fourth Proportional to 212,716.20, 319,074.30 and 133,984.20

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Solution

The fourth proportional to 212,716.20, 319,074.30 and 133,984.20 is: 200,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,716.20 : 319,074.30 = 133,984.20 : x
  2. Step 2: Convert to fraction form
    212,716.20/319,074.30 = 133,984.20/x
  3. Step 3: Cross multiply
    212,716.20x = 319,074.30 × 133,984.20
  4. Step 4: Simplify right side
    212,716.20x = 42,750,914,826.06
  5. Step 5: Solve for x
    x = 42,750,914,826.06/212,716.20
  6. Step 6: Final answer
    x = 200,976.30

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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.