Finding the Fourth Proportional to 380,805.57, 525,508.42 and 208,733.09
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Solution
The fourth proportional to 380,805.57, 525,508.42 and 208,733.09 is: 288,049.88
Step by Step Solution
- Step 1: Write the proportion equation
380,805.57 : 525,508.42 = 208,733.09 : x - Step 2: Convert to fraction form
380,805.57/525,508.42 = 208,733.09/x - Step 3: Cross multiply
380,805.57x = 525,508.42 × 208,733.09 - Step 4: Simplify right side
380,805.57x = 109,690,996,080.14 - Step 5: Solve for x
x = 109,690,996,080.14/380,805.57 - Step 6: Final answer
x = 288,049.88
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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.