Finding the Fourth Proportional to 354,453.36, 489,149.46 and 193,307.10
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Solution
The fourth proportional to 354,453.36, 489,149.46 and 193,307.10 is: 266,765.88
Step by Step Solution
- Step 1: Write the proportion equation
354,453.36 : 489,149.46 = 193,307.10 : x - Step 2: Convert to fraction form
354,453.36/489,149.46 = 193,307.10/x - Step 3: Cross multiply
354,453.36x = 489,149.46 × 193,307.10 - Step 4: Simplify right side
354,453.36x = 94,556,063,579.17 - Step 5: Solve for x
x = 94,556,063,579.17/354,453.36 - Step 6: Final answer
x = 266,765.88
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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.