Finding the Fourth Proportional to 378,093.81, 521,779.14 and 208,328.07
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Solution
The fourth proportional to 378,093.81, 521,779.14 and 208,328.07 is: 287,498.07
Step by Step Solution
- Step 1: Write the proportion equation
378,093.81 : 521,779.14 = 208,328.07 : x - Step 2: Convert to fraction form
378,093.81/521,779.14 = 208,328.07/x - Step 3: Cross multiply
378,093.81x = 521,779.14 × 208,328.07 - Step 4: Simplify right side
378,093.81x = 108,701,241,202.46 - Step 5: Solve for x
x = 108,701,241,202.46/378,093.81 - Step 6: Final answer
x = 287,498.07
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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.