Finding the Fourth Proportional to 289,377.93, 399,344.34 and 160,319.14
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Solution
The fourth proportional to 289,377.93, 399,344.34 and 160,319.14 is: 221,241.97
Step by Step Solution
- Step 1: Write the proportion equation
289,377.93 : 399,344.34 = 160,319.14 : x - Step 2: Convert to fraction form
289,377.93/399,344.34 = 160,319.14/x - Step 3: Cross multiply
289,377.93x = 399,344.34 × 160,319.14 - Step 4: Simplify right side
289,377.93x = 64,022,542,887.05 - Step 5: Solve for x
x = 64,022,542,887.05/289,377.93 - Step 6: Final answer
x = 221,241.97
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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.