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Finding the Fourth Proportional to 208,077.05, 312,118.22 and 73,135.67

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Solution

The fourth proportional to 208,077.05, 312,118.22 and 73,135.67 is: 109,704.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,077.05 : 312,118.22 = 73,135.67 : x
  2. Step 2: Convert to fraction form
    208,077.05/312,118.22 = 73,135.67/x
  3. Step 3: Cross multiply
    208,077.05x = 312,118.22 × 73,135.67
  4. Step 4: Simplify right side
    208,077.05x = 22,826,975,138.91
  5. Step 5: Solve for x
    x = 22,826,975,138.91/208,077.05
  6. Step 6: Final answer
    x = 109,704.44

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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.