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Finding the Fourth Proportional to 262,307.80, 394,239.30 and 228,093.40

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Solution

The fourth proportional to 262,307.80, 394,239.30 and 228,093.40 is: 342,816.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,307.80 : 394,239.30 = 228,093.40 : x
  2. Step 2: Convert to fraction form
    262,307.80/394,239.30 = 228,093.40/x
  3. Step 3: Cross multiply
    262,307.80x = 394,239.30 × 228,093.40
  4. Step 4: Simplify right side
    262,307.80x = 89,923,382,350.62
  5. Step 5: Solve for x
    x = 89,923,382,350.62/262,307.80
  6. Step 6: Final answer
    x = 342,816.27

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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.