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Finding the Fourth Proportional to 355,376.36, 490,420.22 and 194,233.32

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Solution

The fourth proportional to 355,376.36, 490,420.22 and 194,233.32 is: 268,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,376.36 : 490,420.22 = 194,233.32 : x
  2. Step 2: Convert to fraction form
    355,376.36/490,420.22 = 194,233.32/x
  3. Step 3: Cross multiply
    355,376.36x = 490,420.22 × 194,233.32
  4. Step 4: Simplify right side
    355,376.36x = 95,255,947,525.73
  5. Step 5: Solve for x
    x = 95,255,947,525.73/355,376.36
  6. Step 6: Final answer
    x = 268,042.44

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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.