Finding the Fourth Proportional to 381,799.88, 526,869.38 and 212,044.94
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Solution
The fourth proportional to 381,799.88, 526,869.38 and 212,044.94 is: 292,613.99
Step by Step Solution
- Step 1: Write the proportion equation
381,799.88 : 526,869.38 = 212,044.94 : x - Step 2: Convert to fraction form
381,799.88/526,869.38 = 212,044.94/x - Step 3: Cross multiply
381,799.88x = 526,869.38 × 212,044.94 - Step 4: Simplify right side
381,799.88x = 111,719,986,069.94 - Step 5: Solve for x
x = 111,719,986,069.94/381,799.88 - Step 6: Final answer
x = 292,613.99
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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.