Finding the Fourth Proportional to 311,279.08, 429,566.90 and 177,143.08
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Solution
The fourth proportional to 311,279.08, 429,566.90 and 177,143.08 is: 244,458.46
Step by Step Solution
- Step 1: Write the proportion equation
311,279.08 : 429,566.90 = 177,143.08 : x - Step 2: Convert to fraction form
311,279.08/429,566.90 = 177,143.08/x - Step 3: Cross multiply
311,279.08x = 429,566.90 × 177,143.08 - Step 4: Simplify right side
311,279.08x = 76,094,803,732.05 - Step 5: Solve for x
x = 76,094,803,732.05/311,279.08 - Step 6: Final answer
x = 244,458.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.