Finding the Fourth Proportional to 238,203.69, 328,501.68 and 161,837.09
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Solution
The fourth proportional to 238,203.69, 328,501.68 and 161,837.09 is: 223,186.11
Step by Step Solution
- Step 1: Write the proportion equation
238,203.69 : 328,501.68 = 161,837.09 : x - Step 2: Convert to fraction form
238,203.69/328,501.68 = 161,837.09/x - Step 3: Cross multiply
238,203.69x = 328,501.68 × 161,837.09 - Step 4: Simplify right side
238,203.69x = 53,163,754,933.80 - Step 5: Solve for x
x = 53,163,754,933.80/238,203.69 - Step 6: Final answer
x = 223,186.11
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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.