Finding the Fourth Proportional to 268,012.68, 369,858.21 and 147,161.76
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Solution
The fourth proportional to 268,012.68, 369,858.21 and 147,161.76 is: 203,083.62
Step by Step Solution
- Step 1: Write the proportion equation
268,012.68 : 369,858.21 = 147,161.76 : x - Step 2: Convert to fraction form
268,012.68/369,858.21 = 147,161.76/x - Step 3: Cross multiply
268,012.68x = 369,858.21 × 147,161.76 - Step 4: Simplify right side
268,012.68x = 54,428,985,134.05 - Step 5: Solve for x
x = 54,428,985,134.05/268,012.68 - Step 6: Final answer
x = 203,083.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.