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Finding the Fourth Proportional to 449,122.75, 619,790.50 and 245,173.81

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Solution

The fourth proportional to 449,122.75, 619,790.50 and 245,173.81 is: 338,340.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,122.75 : 619,790.50 = 245,173.81 : x
  2. Step 2: Convert to fraction form
    449,122.75/619,790.50 = 245,173.81/x
  3. Step 3: Cross multiply
    449,122.75x = 619,790.50 × 245,173.81
  4. Step 4: Simplify right side
    449,122.75x = 151,956,396,544.12
  5. Step 5: Solve for x
    x = 151,956,396,544.12/449,122.75
  6. Step 6: Final answer
    x = 338,340.46

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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.