Home / 208,018.78-312,027.19-50,246.75

Finding the Fourth Proportional to 208,018.78, 312,027.19 and 50,246.75

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Solution

The fourth proportional to 208,018.78, 312,027.19 and 50,246.75 is: 75,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,018.78 : 312,027.19 = 50,246.75 : x
  2. Step 2: Convert to fraction form
    208,018.78/312,027.19 = 50,246.75/x
  3. Step 3: Cross multiply
    208,018.78x = 312,027.19 × 50,246.75
  4. Step 4: Simplify right side
    208,018.78x = 15,678,352,209.13
  5. Step 5: Solve for x
    x = 15,678,352,209.13/208,018.78
  6. Step 6: Final answer
    x = 75,369.89

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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.