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Finding the Fourth Proportional to 262,590.20, 394,346.10 and 254,295.80

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Solution

The fourth proportional to 262,590.20, 394,346.10 and 254,295.80 is: 381,889.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,590.20 : 394,346.10 = 254,295.80 : x
  2. Step 2: Convert to fraction form
    262,590.20/394,346.10 = 254,295.80/x
  3. Step 3: Cross multiply
    262,590.20x = 394,346.10 × 254,295.80
  4. Step 4: Simplify right side
    262,590.20x = 100,280,556,976.38
  5. Step 5: Solve for x
    x = 100,280,556,976.38/262,590.20
  6. Step 6: Final answer
    x = 381,889.94

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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.