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Finding the Fourth Proportional to 262,905.60, 394,358.40 and 231,801.60

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Solution

The fourth proportional to 262,905.60, 394,358.40 and 231,801.60 is: 347,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,905.60 : 394,358.40 = 231,801.60 : x
  2. Step 2: Convert to fraction form
    262,905.60/394,358.40 = 231,801.60/x
  3. Step 3: Cross multiply
    262,905.60x = 394,358.40 × 231,801.60
  4. Step 4: Simplify right side
    262,905.60x = 91,412,908,093.44
  5. Step 5: Solve for x
    x = 91,412,908,093.44/262,905.60
  6. Step 6: Final answer
    x = 347,702.40

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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.