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Finding the Fourth Proportional to 449,464.84, 620,230.26 and 248,245

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Solution

The fourth proportional to 449,464.84, 620,230.26 and 248,245 is: 342,560.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,464.84 : 620,230.26 = 248,245 : x
  2. Step 2: Convert to fraction form
    449,464.84/620,230.26 = 248,245/x
  3. Step 3: Cross multiply
    449,464.84x = 620,230.26 × 248,245
  4. Step 4: Simplify right side
    449,464.84x = 153,969,060,893.70
  5. Step 5: Solve for x
    x = 153,969,060,893.70/449,464.84
  6. Step 6: Final answer
    x = 342,560.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.