Home / 208,019.78-312,028.69-50,247.75

Finding the Fourth Proportional to 208,019.78, 312,028.69 and 50,247.75

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Solution

The fourth proportional to 208,019.78, 312,028.69 and 50,247.75 is: 75,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,019.78 : 312,028.69 = 50,247.75 : x
  2. Step 2: Convert to fraction form
    208,019.78/312,028.69 = 50,247.75/x
  3. Step 3: Cross multiply
    208,019.78x = 312,028.69 × 50,247.75
  4. Step 4: Simplify right side
    208,019.78x = 15,678,739,607.95
  5. Step 5: Solve for x
    x = 15,678,739,607.95/208,019.78
  6. Step 6: Final answer
    x = 75,371.39

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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.