Finding the Fourth Proportional to 347,959.80, 521,939.70 and 98,643.96
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Solution
The fourth proportional to 347,959.80, 521,939.70 and 98,643.96 is: 147,965.94
Step by Step Solution
- Step 1: Write the proportion equation
347,959.80 : 521,939.70 = 98,643.96 : x - Step 2: Convert to fraction form
347,959.80/521,939.70 = 98,643.96/x - Step 3: Cross multiply
347,959.80x = 521,939.70 × 98,643.96 - Step 4: Simplify right side
347,959.80x = 51,486,198,889.21 - Step 5: Solve for x
x = 51,486,198,889.21/347,959.80 - Step 6: Final answer
x = 147,965.94
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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.