Finding the Fourth Proportional to 381,554.87, 526,551.91 and 209,488.70
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Solution
The fourth proportional to 381,554.87, 526,551.91 and 209,488.70 is: 289,097.80
Step by Step Solution
- Step 1: Write the proportion equation
381,554.87 : 526,551.91 = 209,488.70 : x - Step 2: Convert to fraction form
381,554.87/526,551.91 = 209,488.70/x - Step 3: Cross multiply
381,554.87x = 526,551.91 × 209,488.70 - Step 4: Simplify right side
381,554.87x = 110,306,672,939.22 - Step 5: Solve for x
x = 110,306,672,939.22/381,554.87 - Step 6: Final answer
x = 289,097.80
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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.