Finding the Fourth Proportional to 199,415.80, 299,123.70 and 181,919.80
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Solution
The fourth proportional to 199,415.80, 299,123.70 and 181,919.80 is: 272,879.70
Step by Step Solution
- Step 1: Write the proportion equation
199,415.80 : 299,123.70 = 181,919.80 : x - Step 2: Convert to fraction form
199,415.80/299,123.70 = 181,919.80/x - Step 3: Cross multiply
199,415.80x = 299,123.70 × 181,919.80 - Step 4: Simplify right side
199,415.80x = 54,416,523,679.26 - Step 5: Solve for x
x = 54,416,523,679.26/199,415.80 - Step 6: Final answer
x = 272,879.70
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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.