Finding the Fourth Proportional to 307,229.40, 462,503.84 and 276,331.95
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Solution
The fourth proportional to 307,229.40, 462,503.84 and 276,331.95 is: 415,990.74
Step by Step Solution
- Step 1: Write the proportion equation
307,229.40 : 462,503.84 = 276,331.95 : x - Step 2: Convert to fraction form
307,229.40/462,503.84 = 276,331.95/x - Step 3: Cross multiply
307,229.40x = 462,503.84 × 276,331.95 - Step 4: Simplify right side
307,229.40x = 127,804,586,608.03 - Step 5: Solve for x
x = 127,804,586,608.03/307,229.40 - Step 6: Final answer
x = 415,990.74
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.