Finding the Fourth Proportional to 248,557.95, 343,009.79 and 135,380.70
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Solution
The fourth proportional to 248,557.95, 343,009.79 and 135,380.70 is: 186,825.26
Step by Step Solution
- Step 1: Write the proportion equation
248,557.95 : 343,009.79 = 135,380.70 : x - Step 2: Convert to fraction form
248,557.95/343,009.79 = 135,380.70/x - Step 3: Cross multiply
248,557.95x = 343,009.79 × 135,380.70 - Step 4: Simplify right side
248,557.95x = 46,436,904,800.15 - Step 5: Solve for x
x = 46,436,904,800.15/248,557.95 - Step 6: Final answer
x = 186,825.26
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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.