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Finding the Fourth Proportional to 202,357.26, 279,238.68 and 111,698.67

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Solution

The fourth proportional to 202,357.26, 279,238.68 and 111,698.67 is: 154,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,357.26 : 279,238.68 = 111,698.67 : x
  2. Step 2: Convert to fraction form
    202,357.26/279,238.68 = 111,698.67/x
  3. Step 3: Cross multiply
    202,357.26x = 279,238.68 × 111,698.67
  4. Step 4: Simplify right side
    202,357.26x = 31,190,589,168.56
  5. Step 5: Solve for x
    x = 31,190,589,168.56/202,357.26
  6. Step 6: Final answer
    x = 154,136.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.