Home / 208,621.44-312,988.34-107,364.33

Finding the Fourth Proportional to 208,621.44, 312,988.34 and 107,364.33

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Solution

The fourth proportional to 208,621.44, 312,988.34 and 107,364.33 is: 161,075.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,621.44 : 312,988.34 = 107,364.33 : x
  2. Step 2: Convert to fraction form
    208,621.44/312,988.34 = 107,364.33/x
  3. Step 3: Cross multiply
    208,621.44x = 312,988.34 × 107,364.33
  4. Step 4: Simplify right side
    208,621.44x = 33,603,783,421.91
  5. Step 5: Solve for x
    x = 33,603,783,421.91/208,621.44
  6. Step 6: Final answer
    x = 161,075.41

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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.