Finding the Fourth Proportional to 248,651.36, 343,129.74 and 135,471.68
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Solution
The fourth proportional to 248,651.36, 343,129.74 and 135,471.68 is: 186,945.94
Step by Step Solution
- Step 1: Write the proportion equation
248,651.36 : 343,129.74 = 135,471.68 : x - Step 2: Convert to fraction form
248,651.36/343,129.74 = 135,471.68/x - Step 3: Cross multiply
248,651.36x = 343,129.74 × 135,471.68 - Step 4: Simplify right side
248,651.36x = 46,484,362,335.76 - Step 5: Solve for x
x = 46,484,362,335.76/248,651.36 - Step 6: Final answer
x = 186,945.94
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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.