Finding the Fourth Proportional to 354,557.72, 489,296.60 and 193,418.75
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Solution
The fourth proportional to 354,557.72, 489,296.60 and 193,418.75 is: 266,921.67
Step by Step Solution
- Step 1: Write the proportion equation
354,557.72 : 489,296.60 = 193,418.75 : x - Step 2: Convert to fraction form
354,557.72/489,296.60 = 193,418.75/x - Step 3: Cross multiply
354,557.72x = 489,296.60 × 193,418.75 - Step 4: Simplify right side
354,557.72x = 94,639,137,732.72 - Step 5: Solve for x
x = 94,639,137,732.72/354,557.72 - Step 6: Final answer
x = 266,921.67
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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.