Finding the Fourth Proportional to 271,995.05, 405,258.80 and 256,715.82
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Solution
The fourth proportional to 271,995.05, 405,258.80 and 256,715.82 is: 382,493.53
Step by Step Solution
- Step 1: Write the proportion equation
271,995.05 : 405,258.80 = 256,715.82 : x - Step 2: Convert to fraction form
271,995.05/405,258.80 = 256,715.82/x - Step 3: Cross multiply
271,995.05x = 405,258.80 × 256,715.82 - Step 4: Simplify right side
271,995.05x = 104,036,343,870.64 - Step 5: Solve for x
x = 104,036,343,870.64/271,995.05 - Step 6: Final answer
x = 382,493.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.