Finding the Fourth Proportional to 248,839.68, 343,395.84 and 135,663.36
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Solution
The fourth proportional to 248,839.68, 343,395.84 and 135,663.36 is: 187,213.85
Step by Step Solution
- Step 1: Write the proportion equation
248,839.68 : 343,395.84 = 135,663.36 : x - Step 2: Convert to fraction form
248,839.68/343,395.84 = 135,663.36/x - Step 3: Cross multiply
248,839.68x = 343,395.84 × 135,663.36 - Step 4: Simplify right side
248,839.68x = 46,586,233,464.42 - Step 5: Solve for x
x = 46,586,233,464.42/248,839.68 - Step 6: Final answer
x = 187,213.85
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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.