Finding the Fourth Proportional to 311,279.70, 466,919.55 and 311,279.70
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Solution
The fourth proportional to 311,279.70, 466,919.55 and 311,279.70 is: 466,919.55
Step by Step Solution
- Step 1: Write the proportion equation
311,279.70 : 466,919.55 = 311,279.70 : x - Step 2: Convert to fraction form
311,279.70/466,919.55 = 311,279.70/x - Step 3: Cross multiply
311,279.70x = 466,919.55 × 311,279.70 - Step 4: Simplify right side
311,279.70x = 145,342,577,448.14 - Step 5: Solve for x
x = 145,342,577,448.14/311,279.70 - Step 6: Final answer
x = 466,919.55
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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.