Home / 280,927.44-421,453.60-131,086.00

Finding the Fourth Proportional to 280,927.44, 421,453.60 and 131,086.00

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Solution

The fourth proportional to 280,927.44, 421,453.60 and 131,086.00 is: 196,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,927.44 : 421,453.60 = 131,086.00 : x
  2. Step 2: Convert to fraction form
    280,927.44/421,453.60 = 131,086.00/x
  3. Step 3: Cross multiply
    280,927.44x = 421,453.60 × 131,086.00
  4. Step 4: Simplify right side
    280,927.44x = 55,246,664,438.03
  5. Step 5: Solve for x
    x = 55,246,664,438.03/280,927.44
  6. Step 6: Final answer
    x = 196,658.13

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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.