Finding the Fourth Proportional to 365,231.80, 547,847.70 and 215,543.80
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Solution
The fourth proportional to 365,231.80, 547,847.70 and 215,543.80 is: 323,315.70
Step by Step Solution
- Step 1: Write the proportion equation
365,231.80 : 547,847.70 = 215,543.80 : x - Step 2: Convert to fraction form
365,231.80/547,847.70 = 215,543.80/x - Step 3: Cross multiply
365,231.80x = 547,847.70 × 215,543.80 - Step 4: Simplify right side
365,231.80x = 118,085,175,079.26 - Step 5: Solve for x
x = 118,085,175,079.26/365,231.80 - Step 6: Final answer
x = 323,315.70
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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.