Finding the Fourth Proportional to 381,343.66, 526,286.94 and 209,294.88
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Solution
The fourth proportional to 381,343.66, 526,286.94 and 209,294.88 is: 288,844.88
Step by Step Solution
- Step 1: Write the proportion equation
381,343.66 : 526,286.94 = 209,294.88 : x - Step 2: Convert to fraction form
381,343.66/526,286.94 = 209,294.88/x - Step 3: Cross multiply
381,343.66x = 526,286.94 × 209,294.88 - Step 4: Simplify right side
381,343.66x = 110,149,161,952.87 - Step 5: Solve for x
x = 110,149,161,952.87/381,343.66 - Step 6: Final answer
x = 288,844.88
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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.