Finding the Fourth Proportional to 203,339.98, 280,609.20 and 112,701.79
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Solution
The fourth proportional to 203,339.98, 280,609.20 and 112,701.79 is: 155,528.49
Step by Step Solution
- Step 1: Write the proportion equation
203,339.98 : 280,609.20 = 112,701.79 : x - Step 2: Convert to fraction form
203,339.98/280,609.20 = 112,701.79/x - Step 3: Cross multiply
203,339.98x = 280,609.20 × 112,701.79 - Step 4: Simplify right side
203,339.98x = 31,625,159,481.23 - Step 5: Solve for x
x = 31,625,159,481.23/203,339.98 - Step 6: Final answer
x = 155,528.49
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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.