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Finding the Fourth Proportional to 299,998.90, 449,998.35 and 194,245.30

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Solution

The fourth proportional to 299,998.90, 449,998.35 and 194,245.30 is: 291,367.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,998.90 : 449,998.35 = 194,245.30 : x
  2. Step 2: Convert to fraction form
    299,998.90/449,998.35 = 194,245.30/x
  3. Step 3: Cross multiply
    299,998.90x = 449,998.35 × 194,245.30
  4. Step 4: Simplify right side
    299,998.90x = 87,410,064,495.26
  5. Step 5: Solve for x
    x = 87,410,064,495.26/299,998.90
  6. Step 6: Final answer
    x = 291,367.95

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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.