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Finding the Fourth Proportional to 355,367.70, 490,407.45 and 194,222.75

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Solution

The fourth proportional to 355,367.70, 490,407.45 and 194,222.75 is: 268,027.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,367.70 : 490,407.45 = 194,222.75 : x
  2. Step 2: Convert to fraction form
    355,367.70/490,407.45 = 194,222.75/x
  3. Step 3: Cross multiply
    355,367.70x = 490,407.45 × 194,222.75
  4. Step 4: Simplify right side
    355,367.70x = 95,248,283,137.66
  5. Step 5: Solve for x
    x = 95,248,283,137.66/355,367.70
  6. Step 6: Final answer
    x = 268,027.41

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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.