Finding the Fourth Proportional to 252,138.16, 378,198.96 and 102,374.74
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Solution
The fourth proportional to 252,138.16, 378,198.96 and 102,374.74 is: 153,558.75
Step by Step Solution
- Step 1: Write the proportion equation
252,138.16 : 378,198.96 = 102,374.74 : x - Step 2: Convert to fraction form
252,138.16/378,198.96 = 102,374.74/x - Step 3: Cross multiply
252,138.16x = 378,198.96 × 102,374.74 - Step 4: Simplify right side
252,138.16x = 38,718,020,198.27 - Step 5: Solve for x
x = 38,718,020,198.27/252,138.16 - Step 6: Final answer
x = 153,558.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.