Home / 280,936.24-421,404.80-114,724.24

Finding the Fourth Proportional to 280,936.24, 421,404.80 and 114,724.24

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Solution

The fourth proportional to 280,936.24, 421,404.80 and 114,724.24 is: 172,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,936.24 : 421,404.80 = 114,724.24 : x
  2. Step 2: Convert to fraction form
    280,936.24/421,404.80 = 114,724.24/x
  3. Step 3: Cross multiply
    280,936.24x = 421,404.80 × 114,724.24
  4. Step 4: Simplify right side
    280,936.24x = 48,345,345,412.35
  5. Step 5: Solve for x
    x = 48,345,345,412.35/280,936.24
  6. Step 6: Final answer
    x = 172,086.54

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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.