Finding the Fourth Proportional to 225,629.09, 338,356.14 and 120,390.65
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Solution
The fourth proportional to 225,629.09, 338,356.14 and 120,390.65 is: 180,539.29
Step by Step Solution
- Step 1: Write the proportion equation
225,629.09 : 338,356.14 = 120,390.65 : x - Step 2: Convert to fraction form
225,629.09/338,356.14 = 120,390.65/x - Step 3: Cross multiply
225,629.09x = 338,356.14 × 120,390.65 - Step 4: Simplify right side
225,629.09x = 40,734,913,934.31 - Step 5: Solve for x
x = 40,734,913,934.31/225,629.09 - Step 6: Final answer
x = 180,539.29
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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.