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Finding the Fourth Proportional to 299,737.60, 449,541.60 and 131,257.60

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Solution

The fourth proportional to 299,737.60, 449,541.60 and 131,257.60 is: 196,858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,737.60 : 449,541.60 = 131,257.60 : x
  2. Step 2: Convert to fraction form
    299,737.60/449,541.60 = 131,257.60/x
  3. Step 3: Cross multiply
    299,737.60x = 449,541.60 × 131,257.60
  4. Step 4: Simplify right side
    299,737.60x = 59,005,751,516.16
  5. Step 5: Solve for x
    x = 59,005,751,516.16/299,737.60
  6. Step 6: Final answer
    x = 196,858.02

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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.