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Finding the Fourth Proportional to 355,745.59, 490,940.62 and 194,596.95

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Solution

The fourth proportional to 355,745.59, 490,940.62 and 194,596.95 is: 268,550.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,745.59 : 490,940.62 = 194,596.95 : x
  2. Step 2: Convert to fraction form
    355,745.59/490,940.62 = 194,596.95/x
  3. Step 3: Cross multiply
    355,745.59x = 490,940.62 × 194,596.95
  4. Step 4: Simplify right side
    355,745.59x = 95,535,546,423.41
  5. Step 5: Solve for x
    x = 95,535,546,423.41/355,745.59
  6. Step 6: Final answer
    x = 268,550.19

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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.