Finding the Fourth Proportional to 255,427.21, 352,435.62 and 147,990.70
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Solution
The fourth proportional to 255,427.21, 352,435.62 and 147,990.70 is: 204,195.92
Step by Step Solution
- Step 1: Write the proportion equation
255,427.21 : 352,435.62 = 147,990.70 : x - Step 2: Convert to fraction form
255,427.21/352,435.62 = 147,990.70/x - Step 3: Cross multiply
255,427.21x = 352,435.62 × 147,990.70 - Step 4: Simplify right side
255,427.21x = 52,157,194,108.73 - Step 5: Solve for x
x = 52,157,194,108.73/255,427.21 - Step 6: Final answer
x = 204,195.92
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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.