Finding the Fourth Proportional to 381,379.08, 526,285.15 and 209,293.17
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Solution
The fourth proportional to 381,379.08, 526,285.15 and 209,293.17 is: 288,814.70
Step by Step Solution
- Step 1: Write the proportion equation
381,379.08 : 526,285.15 = 209,293.17 : x - Step 2: Convert to fraction form
381,379.08/526,285.15 = 209,293.17/x - Step 3: Cross multiply
381,379.08x = 526,285.15 × 209,293.17 - Step 4: Simplify right side
381,379.08x = 110,147,884,870.62 - Step 5: Solve for x
x = 110,147,884,870.62/381,379.08 - Step 6: Final answer
x = 288,814.70
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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.