Finding the Fourth Proportional to 248,549.21, 343,001.90 and 135,371.96
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Solution
The fourth proportional to 248,549.21, 343,001.90 and 135,371.96 is: 186,815.48
Step by Step Solution
- Step 1: Write the proportion equation
248,549.21 : 343,001.90 = 135,371.96 : x - Step 2: Convert to fraction form
248,549.21/343,001.90 = 135,371.96/x - Step 3: Cross multiply
248,549.21x = 343,001.90 × 135,371.96 - Step 4: Simplify right side
248,549.21x = 46,432,839,486.72 - Step 5: Solve for x
x = 46,432,839,486.72/248,549.21 - Step 6: Final answer
x = 186,815.48
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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.