Home / 207,370.26-311,142.87-123,291.05

Finding the Fourth Proportional to 207,370.26, 311,142.87 and 123,291.05

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Solution

The fourth proportional to 207,370.26, 311,142.87 and 123,291.05 is: 184,988.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,370.26 : 311,142.87 = 123,291.05 : x
  2. Step 2: Convert to fraction form
    207,370.26/311,142.87 = 123,291.05/x
  3. Step 3: Cross multiply
    207,370.26x = 311,142.87 × 123,291.05
  4. Step 4: Simplify right side
    207,370.26x = 38,361,129,586.60
  5. Step 5: Solve for x
    x = 38,361,129,586.60/207,370.26
  6. Step 6: Final answer
    x = 184,988.58

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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.