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Finding the Fourth Proportional to 331,261.60, 496,892.40 and 263,610.40

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Solution

The fourth proportional to 331,261.60, 496,892.40 and 263,610.40 is: 395,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,261.60 : 496,892.40 = 263,610.40 : x
  2. Step 2: Convert to fraction form
    331,261.60/496,892.40 = 263,610.40/x
  3. Step 3: Cross multiply
    331,261.60x = 496,892.40 × 263,610.40
  4. Step 4: Simplify right side
    331,261.60x = 130,986,004,320.96
  5. Step 5: Solve for x
    x = 130,986,004,320.96/331,261.60
  6. Step 6: Final answer
    x = 395,415.60

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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.