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Finding the Fourth Proportional to 449,317, 620,058 and 248,113

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Solution

The fourth proportional to 449,317, 620,058 and 248,113 is: 342,396.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,317 : 620,058 = 248,113 : x
  2. Step 2: Convert to fraction form
    449,317/620,058 = 248,113/x
  3. Step 3: Cross multiply
    449,317x = 620,058 × 248,113
  4. Step 4: Simplify right side
    449,317x = 153,844,450,554
  5. Step 5: Solve for x
    x = 153,844,450,554/449,317
  6. Step 6: Final answer
    x = 342,396.24

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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.