Finding the Fourth Proportional to 255,118.82, 382,711.64 and 84,283.74
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Solution
The fourth proportional to 255,118.82, 382,711.64 and 84,283.74 is: 126,436.65
Step by Step Solution
- Step 1: Write the proportion equation
255,118.82 : 382,711.64 = 84,283.74 : x - Step 2: Convert to fraction form
255,118.82/382,711.64 = 84,283.74/x - Step 3: Cross multiply
255,118.82x = 382,711.64 × 84,283.74 - Step 4: Simplify right side
255,118.82x = 32,256,367,939.31 - Step 5: Solve for x
x = 32,256,367,939.31/255,118.82 - Step 6: Final answer
x = 126,436.65
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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.