Finding the Fourth Proportional to 354,427.17, 489,202.52 and 201,554.70
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Solution
The fourth proportional to 354,427.17, 489,202.52 and 201,554.70 is: 278,198.38
Step by Step Solution
- Step 1: Write the proportion equation
354,427.17 : 489,202.52 = 201,554.70 : x - Step 2: Convert to fraction form
354,427.17/489,202.52 = 201,554.70/x - Step 3: Cross multiply
354,427.17x = 489,202.52 × 201,554.70 - Step 4: Simplify right side
354,427.17x = 98,601,066,150.07 - Step 5: Solve for x
x = 98,601,066,150.07/354,427.17 - Step 6: Final answer
x = 278,198.38
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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.