Finding the Fourth Proportional to 378,328.14, 522,089.40 and 208,562.26
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Solution
The fourth proportional to 378,328.14, 522,089.40 and 208,562.26 is: 287,814.03
Step by Step Solution
- Step 1: Write the proportion equation
378,328.14 : 522,089.40 = 208,562.26 : x - Step 2: Convert to fraction form
378,328.14/522,089.40 = 208,562.26/x - Step 3: Cross multiply
378,328.14x = 522,089.40 × 208,562.26 - Step 4: Simplify right side
378,328.14x = 108,888,145,186.04 - Step 5: Solve for x
x = 108,888,145,186.04/378,328.14 - Step 6: Final answer
x = 287,814.03
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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.