Finding the Fourth Proportional to 381,387.57, 526,314.84 and 211,649.01
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Solution
The fourth proportional to 381,387.57, 526,314.84 and 211,649.01 is: 292,075.63
Step by Step Solution
- Step 1: Write the proportion equation
381,387.57 : 526,314.84 = 211,649.01 : x - Step 2: Convert to fraction form
381,387.57/526,314.84 = 211,649.01/x - Step 3: Cross multiply
381,387.57x = 526,314.84 × 211,649.01 - Step 4: Simplify right side
381,387.57x = 111,394,014,834.31 - Step 5: Solve for x
x = 111,394,014,834.31/381,387.57 - Step 6: Final answer
x = 292,075.63
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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.