Home / 203,268.26-305,089.78-103,500.38

Finding the Fourth Proportional to 203,268.26, 305,089.78 and 103,500.38

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Solution

The fourth proportional to 203,268.26, 305,089.78 and 103,500.38 is: 155,345.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,268.26 : 305,089.78 = 103,500.38 : x
  2. Step 2: Convert to fraction form
    203,268.26/305,089.78 = 103,500.38/x
  3. Step 3: Cross multiply
    203,268.26x = 305,089.78 × 103,500.38
  4. Step 4: Simplify right side
    203,268.26x = 31,576,908,164.12
  5. Step 5: Solve for x
    x = 31,576,908,164.12/203,268.26
  6. Step 6: Final answer
    x = 155,345.99

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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.