Finding the Fourth Proportional to 326,151.55, 450,138.35 and 198,900.95
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Solution
The fourth proportional to 326,151.55, 450,138.35 and 198,900.95 is: 274,513.32
Step by Step Solution
- Step 1: Write the proportion equation
326,151.55 : 450,138.35 = 198,900.95 : x - Step 2: Convert to fraction form
326,151.55/450,138.35 = 198,900.95/x - Step 3: Cross multiply
326,151.55x = 450,138.35 × 198,900.95 - Step 4: Simplify right side
326,151.55x = 89,532,944,451.93 - Step 5: Solve for x
x = 89,532,944,451.93/326,151.55 - Step 6: Final answer
x = 274,513.32
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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.