Finding the Fourth Proportional to 427,108.12, 589,268.34 and 274,231.96
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Solution
The fourth proportional to 427,108.12, 589,268.34 and 274,231.96 is: 378,349.66
Step by Step Solution
- Step 1: Write the proportion equation
427,108.12 : 589,268.34 = 274,231.96 : x - Step 2: Convert to fraction form
427,108.12/589,268.34 = 274,231.96/x - Step 3: Cross multiply
427,108.12x = 589,268.34 × 274,231.96 - Step 4: Simplify right side
427,108.12x = 161,596,211,844.15 - Step 5: Solve for x
x = 161,596,211,844.15/427,108.12 - Step 6: Final answer
x = 378,349.66
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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.