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Finding the Fourth Proportional to 355,516.53, 490,612.82 and 194,371.58

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Solution

The fourth proportional to 355,516.53, 490,612.82 and 194,371.58 is: 268,232.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,516.53 : 490,612.82 = 194,371.58 : x
  2. Step 2: Convert to fraction form
    355,516.53/490,612.82 = 194,371.58/x
  3. Step 3: Cross multiply
    355,516.53x = 490,612.82 × 194,371.58
  4. Step 4: Simplify right side
    355,516.53x = 95,361,189,246.33
  5. Step 5: Solve for x
    x = 95,361,189,246.33/355,516.53
  6. Step 6: Final answer
    x = 268,232.79

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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.