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Finding the Fourth Proportional to 263,476.80, 394,340.40 and 263,476.80

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Solution

The fourth proportional to 263,476.80, 394,340.40 and 263,476.80 is: 394,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,476.80 : 394,340.40 = 263,476.80 : x
  2. Step 2: Convert to fraction form
    263,476.80/394,340.40 = 263,476.80/x
  3. Step 3: Cross multiply
    263,476.80x = 394,340.40 × 263,476.80
  4. Step 4: Simplify right side
    263,476.80x = 103,899,546,702.72
  5. Step 5: Solve for x
    x = 103,899,546,702.72/263,476.80
  6. Step 6: Final answer
    x = 394,340.40

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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.