Finding the Fourth Proportional to 279,405.05, 419,202.34 and 121,736.93
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Solution
The fourth proportional to 279,405.05, 419,202.34 and 121,736.93 is: 182,646.68
Step by Step Solution
- Step 1: Write the proportion equation
279,405.05 : 419,202.34 = 121,736.93 : x - Step 2: Convert to fraction form
279,405.05/419,202.34 = 121,736.93/x - Step 3: Cross multiply
279,405.05x = 419,202.34 × 121,736.93 - Step 4: Simplify right side
279,405.05x = 51,032,403,520.06 - Step 5: Solve for x
x = 51,032,403,520.06/279,405.05 - Step 6: Final answer
x = 182,646.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.