Home / 208,150.12-312,223.74-50,379.40

Finding the Fourth Proportional to 208,150.12, 312,223.74 and 50,379.40

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Solution

The fourth proportional to 208,150.12, 312,223.74 and 50,379.40 is: 75,568.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,150.12 : 312,223.74 = 50,379.40 : x
  2. Step 2: Convert to fraction form
    208,150.12/312,223.74 = 50,379.40/x
  3. Step 3: Cross multiply
    208,150.12x = 312,223.74 × 50,379.40
  4. Step 4: Simplify right side
    208,150.12x = 15,729,644,686.96
  5. Step 5: Solve for x
    x = 15,729,644,686.96/208,150.12
  6. Step 6: Final answer
    x = 75,568.75

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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.