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Finding the Fourth Proportional to 355,421.43, 490,481.58 and 194,277.11

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Solution

The fourth proportional to 355,421.43, 490,481.58 and 194,277.11 is: 268,102.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,421.43 : 490,481.58 = 194,277.11 : x
  2. Step 2: Convert to fraction form
    355,421.43/490,481.58 = 194,277.11/x
  3. Step 3: Cross multiply
    355,421.43x = 490,481.58 × 194,277.11
  4. Step 4: Simplify right side
    355,421.43x = 95,289,341,418.23
  5. Step 5: Solve for x
    x = 95,289,341,418.23/355,421.43
  6. Step 6: Final answer
    x = 268,102.41

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1.5x scale

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.