Home / 300,078.18-450,353.88-131,714.73

Finding the Fourth Proportional to 300,078.18, 450,353.88 and 131,714.73

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Solution

The fourth proportional to 300,078.18, 450,353.88 and 131,714.73 is: 197,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,078.18 : 450,353.88 = 131,714.73 : x
  2. Step 2: Convert to fraction form
    300,078.18/450,353.88 = 131,714.73/x
  3. Step 3: Cross multiply
    300,078.18x = 450,353.88 × 131,714.73
  4. Step 4: Simplify right side
    300,078.18x = 59,318,239,708.65
  5. Step 5: Solve for x
    x = 59,318,239,708.65/300,078.18
  6. Step 6: Final answer
    x = 197,675.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.