Finding the Fourth Proportional to 343,079.40, 514,910.70 and 276,594.60
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Solution
The fourth proportional to 343,079.40, 514,910.70 and 276,594.60 is: 415,126.99
Step by Step Solution
- Step 1: Write the proportion equation
343,079.40 : 514,910.70 = 276,594.60 : x - Step 2: Convert to fraction form
343,079.40/514,910.70 = 276,594.60/x - Step 3: Cross multiply
343,079.40x = 514,910.70 × 276,594.60 - Step 4: Simplify right side
343,079.40x = 142,421,519,102.22 - Step 5: Solve for x
x = 142,421,519,102.22/343,079.40 - Step 6: Final answer
x = 415,126.99
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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.