Finding the Fourth Proportional to 368,777.49, 508,936.37 and 223,597.18
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Solution
The fourth proportional to 368,777.49, 508,936.37 and 223,597.18 is: 308,578.32
Step by Step Solution
- Step 1: Write the proportion equation
368,777.49 : 508,936.37 = 223,597.18 : x - Step 2: Convert to fraction form
368,777.49/508,936.37 = 223,597.18/x - Step 3: Cross multiply
368,777.49x = 508,936.37 × 223,597.18 - Step 4: Simplify right side
368,777.49x = 113,796,737,131.44 - Step 5: Solve for x
x = 113,796,737,131.44/368,777.49 - Step 6: Final answer
x = 308,578.32
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1.5x scale
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.