Finding the Fourth Proportional to 289,926.70, 434,544.45 and 121,446.70
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Solution
The fourth proportional to 289,926.70, 434,544.45 and 121,446.70 is: 182,025.28
Step by Step Solution
- Step 1: Write the proportion equation
289,926.70 : 434,544.45 = 121,446.70 : x - Step 2: Convert to fraction form
289,926.70/434,544.45 = 121,446.70/x - Step 3: Cross multiply
289,926.70x = 434,544.45 × 121,446.70 - Step 4: Simplify right side
289,926.70x = 52,773,989,455.82 - Step 5: Solve for x
x = 52,773,989,455.82/289,926.70 - Step 6: Final answer
x = 182,025.28
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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.