Finding the Fourth Proportional to 312,446.76, 431,176.68 and 169,207.44
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Solution
The fourth proportional to 312,446.76, 431,176.68 and 169,207.44 is: 233,506.35
Step by Step Solution
- Step 1: Write the proportion equation
312,446.76 : 431,176.68 = 169,207.44 : x - Step 2: Convert to fraction form
312,446.76/431,176.68 = 169,207.44/x - Step 3: Cross multiply
312,446.76x = 431,176.68 × 169,207.44 - Step 4: Simplify right side
312,446.76x = 72,958,302,210.50 - Step 5: Solve for x
x = 72,958,302,210.50/312,446.76 - Step 6: Final answer
x = 233,506.35
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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.