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Finding the Fourth Proportional to 203,216.60, 304,824.90 and 199,328.60

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Solution

The fourth proportional to 203,216.60, 304,824.90 and 199,328.60 is: 298,992.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,216.60 : 304,824.90 = 199,328.60 : x
  2. Step 2: Convert to fraction form
    203,216.60/304,824.90 = 199,328.60/x
  3. Step 3: Cross multiply
    203,216.60x = 304,824.90 × 199,328.60
  4. Step 4: Simplify right side
    203,216.60x = 60,760,320,562.14
  5. Step 5: Solve for x
    x = 60,760,320,562.14/203,216.60
  6. Step 6: Final answer
    x = 298,992.90

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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.