Finding the Fourth Proportional to 239,888.48, 331,075.28 and 139,286.48
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Solution
The fourth proportional to 239,888.48, 331,075.28 and 139,286.48 is: 192,232.28
Step by Step Solution
- Step 1: Write the proportion equation
239,888.48 : 331,075.28 = 139,286.48 : x - Step 2: Convert to fraction form
239,888.48/331,075.28 = 139,286.48/x - Step 3: Cross multiply
239,888.48x = 331,075.28 × 139,286.48 - Step 4: Simplify right side
239,888.48x = 46,114,310,366.21 - Step 5: Solve for x
x = 46,114,310,366.21/239,888.48 - Step 6: Final answer
x = 192,232.28
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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.