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Finding the Fourth Proportional to 203,804.40, 305,998.20 and 154,232.40

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Solution

The fourth proportional to 203,804.40, 305,998.20 and 154,232.40 is: 231,569.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,804.40 : 305,998.20 = 154,232.40 : x
  2. Step 2: Convert to fraction form
    203,804.40/305,998.20 = 154,232.40/x
  3. Step 3: Cross multiply
    203,804.40x = 305,998.20 × 154,232.40
  4. Step 4: Simplify right side
    203,804.40x = 47,194,836,781.68
  5. Step 5: Solve for x
    x = 47,194,836,781.68/203,804.40
  6. Step 6: Final answer
    x = 231,569.27

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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.