Finding the Fourth Proportional to 378,363.95, 522,138.79 and 208,598.07
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Solution
The fourth proportional to 378,363.95, 522,138.79 and 208,598.07 is: 287,863.43
Step by Step Solution
- Step 1: Write the proportion equation
378,363.95 : 522,138.79 = 208,598.07 : x - Step 2: Convert to fraction form
378,363.95/522,138.79 = 208,598.07/x - Step 3: Cross multiply
378,363.95x = 522,138.79 × 208,598.07 - Step 4: Simplify right side
378,363.95x = 108,917,143,866.14 - Step 5: Solve for x
x = 108,917,143,866.14/378,363.95 - Step 6: Final answer
x = 287,863.43
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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.