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Finding the Fourth Proportional to 449,150, 619,827 and 247,947.44

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Solution

The fourth proportional to 449,150, 619,827 and 247,947.44 is: 342,167.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,150 : 619,827 = 247,947.44 : x
  2. Step 2: Convert to fraction form
    449,150/619,827 = 247,947.44/x
  3. Step 3: Cross multiply
    449,150x = 619,827 × 247,947.44
  4. Step 4: Simplify right side
    449,150x = 153,684,517,892.88
  5. Step 5: Solve for x
    x = 153,684,517,892.88/449,150
  6. Step 6: Final answer
    x = 342,167.47

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1.5x scale

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.