Finding the Fourth Proportional to 141,202.70, 211,804.05 and 121,519.70
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Solution
The fourth proportional to 141,202.70, 211,804.05 and 121,519.70 is: 182,279.55
Step by Step Solution
- Step 1: Write the proportion equation
141,202.70 : 211,804.05 = 121,519.70 : x - Step 2: Convert to fraction form
141,202.70/211,804.05 = 121,519.70/x - Step 3: Cross multiply
141,202.70x = 211,804.05 × 121,519.70 - Step 4: Simplify right side
141,202.70x = 25,738,364,614.79 - Step 5: Solve for x
x = 25,738,364,614.79/141,202.70 - Step 6: Final answer
x = 182,279.55
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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.