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Finding the Fourth Proportional to 355,366.91, 490,399.04 and 194,223.11

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Solution

The fourth proportional to 355,366.91, 490,399.04 and 194,223.11 is: 268,023.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,366.91 : 490,399.04 = 194,223.11 : x
  2. Step 2: Convert to fraction form
    355,366.91/490,399.04 = 194,223.11/x
  3. Step 3: Cross multiply
    355,366.91x = 490,399.04 × 194,223.11
  4. Step 4: Simplify right side
    355,366.91x = 95,246,824,723.38
  5. Step 5: Solve for x
    x = 95,246,824,723.38/355,366.91
  6. Step 6: Final answer
    x = 268,023.90

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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.