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Finding the Fourth Proportional to 251,806.20, 377,709.30 and 242,129.40

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Solution

The fourth proportional to 251,806.20, 377,709.30 and 242,129.40 is: 363,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,806.20 : 377,709.30 = 242,129.40 : x
  2. Step 2: Convert to fraction form
    251,806.20/377,709.30 = 242,129.40/x
  3. Step 3: Cross multiply
    251,806.20x = 377,709.30 × 242,129.40
  4. Step 4: Simplify right side
    251,806.20x = 91,454,526,183.42
  5. Step 5: Solve for x
    x = 91,454,526,183.42/251,806.20
  6. Step 6: Final answer
    x = 363,194.10

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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.