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Finding the Fourth Proportional to 355,520.53, 490,618.34 and 194,375.59

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Solution

The fourth proportional to 355,520.53, 490,618.34 and 194,375.59 is: 268,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,520.53 : 490,618.34 = 194,375.59 : x
  2. Step 2: Convert to fraction form
    355,520.53/490,618.34 = 194,375.59/x
  3. Step 3: Cross multiply
    355,520.53x = 490,618.34 × 194,375.59
  4. Step 4: Simplify right side
    355,520.53x = 95,364,229,302.32
  5. Step 5: Solve for x
    x = 95,364,229,302.32/355,520.53
  6. Step 6: Final answer
    x = 268,238.32

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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.