Finding the Fourth Proportional to 212,923.99, 318,721.66 and 156,827.44
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Solution
The fourth proportional to 212,923.99, 318,721.66 and 156,827.44 is: 234,751.86
Step by Step Solution
- Step 1: Write the proportion equation
212,923.99 : 318,721.66 = 156,827.44 : x - Step 2: Convert to fraction form
212,923.99/318,721.66 = 156,827.44/x - Step 3: Cross multiply
212,923.99x = 318,721.66 × 156,827.44 - Step 4: Simplify right side
212,923.99x = 49,984,302,010.35 - Step 5: Solve for x
x = 49,984,302,010.35/212,923.99 - Step 6: Final answer
x = 234,751.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.