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Finding the Fourth Proportional to 203,435.60, 305,153.40 and 192,030.80

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Solution

The fourth proportional to 203,435.60, 305,153.40 and 192,030.80 is: 288,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,435.60 : 305,153.40 = 192,030.80 : x
  2. Step 2: Convert to fraction form
    203,435.60/305,153.40 = 192,030.80/x
  3. Step 3: Cross multiply
    203,435.60x = 305,153.40 × 192,030.80
  4. Step 4: Simplify right side
    203,435.60x = 58,598,851,524.72
  5. Step 5: Solve for x
    x = 58,598,851,524.72/203,435.60
  6. Step 6: Final answer
    x = 288,046.20

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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.