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Finding the Fourth Proportional to 262,922.70, 394,384.05 and 252,425.10

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Solution

The fourth proportional to 262,922.70, 394,384.05 and 252,425.10 is: 378,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,922.70 : 394,384.05 = 252,425.10 : x
  2. Step 2: Convert to fraction form
    262,922.70/394,384.05 = 252,425.10/x
  3. Step 3: Cross multiply
    262,922.70x = 394,384.05 × 252,425.10
  4. Step 4: Simplify right side
    262,922.70x = 99,552,433,259.66
  5. Step 5: Solve for x
    x = 99,552,433,259.66/262,922.70
  6. Step 6: Final answer
    x = 378,637.65

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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.