Finding the Fourth Proportional to 641,376.08, 961,908.60 and 267,194.96
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Solution
The fourth proportional to 641,376.08, 961,908.60 and 267,194.96 is: 400,727.65
Step by Step Solution
- Step 1: Write the proportion equation
641,376.08 : 961,908.60 = 267,194.96 : x - Step 2: Convert to fraction form
641,376.08/961,908.60 = 267,194.96/x - Step 3: Cross multiply
641,376.08x = 961,908.60 × 267,194.96 - Step 4: Simplify right side
641,376.08x = 257,017,129,900.66 - Step 5: Solve for x
x = 257,017,129,900.66/641,376.08 - Step 6: Final answer
x = 400,727.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.