Finding the Fourth Proportional to 289,790.18, 434,378.46 and 97,481.53
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Solution
The fourth proportional to 289,790.18, 434,378.46 and 97,481.53 is: 146,119.09
Step by Step Solution
- Step 1: Write the proportion equation
289,790.18 : 434,378.46 = 97,481.53 : x - Step 2: Convert to fraction form
289,790.18/434,378.46 = 97,481.53/x - Step 3: Cross multiply
289,790.18x = 434,378.46 × 97,481.53 - Step 4: Simplify right side
289,790.18x = 42,343,876,879.84 - Step 5: Solve for x
x = 42,343,876,879.84/289,790.18 - Step 6: Final answer
x = 146,119.09
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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.