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Finding the Fourth Proportional to 264,630.40, 396,945.60 and 262,787.20

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Solution

The fourth proportional to 264,630.40, 396,945.60 and 262,787.20 is: 394,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,630.40 : 396,945.60 = 262,787.20 : x
  2. Step 2: Convert to fraction form
    264,630.40/396,945.60 = 262,787.20/x
  3. Step 3: Cross multiply
    264,630.40x = 396,945.60 × 262,787.20
  4. Step 4: Simplify right side
    264,630.40x = 104,312,222,776.32
  5. Step 5: Solve for x
    x = 104,312,222,776.32/264,630.40
  6. Step 6: Final answer
    x = 394,180.80

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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.