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Finding the Fourth Proportional to 299,602.12, 449,412.38 and 131,035.72

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Solution

The fourth proportional to 299,602.12, 449,412.38 and 131,035.72 is: 196,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,602.12 : 449,412.38 = 131,035.72 : x
  2. Step 2: Convert to fraction form
    299,602.12/449,412.38 = 131,035.72/x
  3. Step 3: Cross multiply
    299,602.12x = 449,412.38 × 131,035.72
  4. Step 4: Simplify right side
    299,602.12x = 58,889,074,790.21
  5. Step 5: Solve for x
    x = 58,889,074,790.21/299,602.12
  6. Step 6: Final answer
    x = 196,557.60

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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.