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Finding the Fourth Proportional to 355,377.36, 490,421.60 and 194,234.32

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Solution

The fourth proportional to 355,377.36, 490,421.60 and 194,234.32 is: 268,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,377.36 : 490,421.60 = 194,234.32 : x
  2. Step 2: Convert to fraction form
    355,377.36/490,421.60 = 194,234.32/x
  3. Step 3: Cross multiply
    355,377.36x = 490,421.60 × 194,234.32
  4. Step 4: Simplify right side
    355,377.36x = 95,256,705,989.31
  5. Step 5: Solve for x
    x = 95,256,705,989.31/355,377.36
  6. Step 6: Final answer
    x = 268,043.82

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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.