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Finding the Fourth Proportional to 449,210.90, 619,687.32 and 267,795

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Solution

The fourth proportional to 449,210.90, 619,687.32 and 267,795 is: 369,423.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,210.90 : 619,687.32 = 267,795 : x
  2. Step 2: Convert to fraction form
    449,210.90/619,687.32 = 267,795/x
  3. Step 3: Cross multiply
    449,210.90x = 619,687.32 × 267,795
  4. Step 4: Simplify right side
    449,210.90x = 165,949,165,859.40
  5. Step 5: Solve for x
    x = 165,949,165,859.40/449,210.90
  6. Step 6: Final answer
    x = 369,423.73

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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.