Finding the Fourth Proportional to 354,370.40, 489,020.49 and 193,228.59
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Solution
The fourth proportional to 354,370.40, 489,020.49 and 193,228.59 is: 266,649.65
Step by Step Solution
- Step 1: Write the proportion equation
354,370.40 : 489,020.49 = 193,228.59 : x - Step 2: Convert to fraction form
354,370.40/489,020.49 = 193,228.59/x - Step 3: Cross multiply
354,370.40x = 489,020.49 × 193,228.59 - Step 4: Simplify right side
354,370.40x = 94,492,741,597.64 - Step 5: Solve for x
x = 94,492,741,597.64/354,370.40 - Step 6: Final answer
x = 266,649.65
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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.