Finding the Fourth Proportional to 381,300.75, 526,195.04 and 211,536.09
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Solution
The fourth proportional to 381,300.75, 526,195.04 and 211,536.09 is: 291,919.80
Step by Step Solution
- Step 1: Write the proportion equation
381,300.75 : 526,195.04 = 211,536.09 : x - Step 2: Convert to fraction form
381,300.75/526,195.04 = 211,536.09/x - Step 3: Cross multiply
381,300.75x = 526,195.04 × 211,536.09 - Step 4: Simplify right side
381,300.75x = 111,309,240,281.31 - Step 5: Solve for x
x = 111,309,240,281.31/381,300.75 - Step 6: Final answer
x = 291,919.80
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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.