Finding the Fourth Proportional to 354,528.36, 489,429.80 and 273,774.60
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Solution
The fourth proportional to 354,528.36, 489,429.80 and 273,774.60 is: 377,948.46
Step by Step Solution
- Step 1: Write the proportion equation
354,528.36 : 489,429.80 = 273,774.60 : x - Step 2: Convert to fraction form
354,528.36/489,429.80 = 273,774.60/x - Step 3: Cross multiply
354,528.36x = 489,429.80 × 273,774.60 - Step 4: Simplify right side
354,528.36x = 133,993,447,723.08 - Step 5: Solve for x
x = 133,993,447,723.08/354,528.36 - Step 6: Final answer
x = 377,948.46
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1.5x scale
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.