Home / 212,824.20-319,236.30-202,456.20

Finding the Fourth Proportional to 212,824.20, 319,236.30 and 202,456.20

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Solution

The fourth proportional to 212,824.20, 319,236.30 and 202,456.20 is: 303,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,824.20 : 319,236.30 = 202,456.20 : x
  2. Step 2: Convert to fraction form
    212,824.20/319,236.30 = 202,456.20/x
  3. Step 3: Cross multiply
    212,824.20x = 319,236.30 × 202,456.20
  4. Step 4: Simplify right side
    212,824.20x = 64,631,368,200.06
  5. Step 5: Solve for x
    x = 64,631,368,200.06/212,824.20
  6. Step 6: Final answer
    x = 303,684.30

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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.