Home / 355,450.48-490,520.55-194,305.58

Finding the Fourth Proportional to 355,450.48, 490,520.55 and 194,305.58

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Solution

The fourth proportional to 355,450.48, 490,520.55 and 194,305.58 is: 268,141.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,450.48 : 490,520.55 = 194,305.58 : x
  2. Step 2: Convert to fraction form
    355,450.48/490,520.55 = 194,305.58/x
  3. Step 3: Cross multiply
    355,450.48x = 490,520.55 × 194,305.58
  4. Step 4: Simplify right side
    355,450.48x = 95,310,879,969.67
  5. Step 5: Solve for x
    x = 95,310,879,969.67/355,450.48
  6. Step 6: Final answer
    x = 268,141.09

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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.