Finding the Fourth Proportional to 248,685.78, 343,186.80 and 135,508.52
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Solution
The fourth proportional to 248,685.78, 343,186.80 and 135,508.52 is: 187,001.99
Step by Step Solution
- Step 1: Write the proportion equation
248,685.78 : 343,186.80 = 135,508.52 : x - Step 2: Convert to fraction form
248,685.78/343,186.80 = 135,508.52/x - Step 3: Cross multiply
248,685.78x = 343,186.80 × 135,508.52 - Step 4: Simplify right side
248,685.78x = 46,504,735,351.54 - Step 5: Solve for x
x = 46,504,735,351.54/248,685.78 - Step 6: Final answer
x = 187,001.99
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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.