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Finding the Fourth Proportional to 299,468.80, 449,177.28 and 121,994.56

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Solution

The fourth proportional to 299,468.80, 449,177.28 and 121,994.56 is: 182,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,468.80 : 449,177.28 = 121,994.56 : x
  2. Step 2: Convert to fraction form
    299,468.80/449,177.28 = 121,994.56/x
  3. Step 3: Cross multiply
    299,468.80x = 449,177.28 × 121,994.56
  4. Step 4: Simplify right side
    299,468.80x = 54,797,184,635.60
  5. Step 5: Solve for x
    x = 54,797,184,635.60/299,468.80
  6. Step 6: Final answer
    x = 182,981.28

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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.