Finding the Fourth Proportional to 345,128.09, 476,298.38 and 209,173.91
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Solution
The fourth proportional to 345,128.09, 476,298.38 and 209,173.91 is: 288,673.09
Step by Step Solution
- Step 1: Write the proportion equation
345,128.09 : 476,298.38 = 209,173.91 : x - Step 2: Convert to fraction form
345,128.09/476,298.38 = 209,173.91/x - Step 3: Cross multiply
345,128.09x = 476,298.38 × 209,173.91 - Step 4: Simplify right side
345,128.09x = 99,629,193,425.40 - Step 5: Solve for x
x = 99,629,193,425.40/345,128.09 - Step 6: Final answer
x = 288,673.09
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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.