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Finding the Fourth Proportional to 242,589.80, 363,933.30 and 203,418.20

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Solution

The fourth proportional to 242,589.80, 363,933.30 and 203,418.20 is: 305,168.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,589.80 : 363,933.30 = 203,418.20 : x
  2. Step 2: Convert to fraction form
    242,589.80/363,933.30 = 203,418.20/x
  3. Step 3: Cross multiply
    242,589.80x = 363,933.30 × 203,418.20
  4. Step 4: Simplify right side
    242,589.80x = 74,030,656,806.06
  5. Step 5: Solve for x
    x = 74,030,656,806.06/242,589.80
  6. Step 6: Final answer
    x = 305,168.05

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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.