Finding the Fourth Proportional to 343,081.40, 514,913.70 and 276,596.60
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Solution
The fourth proportional to 343,081.40, 514,913.70 and 276,596.60 is: 415,129.99
Step by Step Solution
- Step 1: Write the proportion equation
343,081.40 : 514,913.70 = 276,596.60 : x - Step 2: Convert to fraction form
343,081.40/514,913.70 = 276,596.60/x - Step 3: Cross multiply
343,081.40x = 514,913.70 × 276,596.60 - Step 4: Simplify right side
343,081.40x = 142,423,378,713.42 - Step 5: Solve for x
x = 142,423,378,713.42/343,081.40 - Step 6: Final answer
x = 415,129.99
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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.