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Finding the Fourth Proportional to 262,851.70, 394,277.55 and 203,869.30

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Solution

The fourth proportional to 262,851.70, 394,277.55 and 203,869.30 is: 305,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,851.70 : 394,277.55 = 203,869.30 : x
  2. Step 2: Convert to fraction form
    262,851.70/394,277.55 = 203,869.30/x
  3. Step 3: Cross multiply
    262,851.70x = 394,277.55 × 203,869.30
  4. Step 4: Simplify right side
    262,851.70x = 80,381,088,124.22
  5. Step 5: Solve for x
    x = 80,381,088,124.22/262,851.70
  6. Step 6: Final answer
    x = 305,803.95

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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.