Finding the Fourth Proportional to 311,924.58, 430,460.84 and 175,961.18
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Solution
The fourth proportional to 311,924.58, 430,460.84 and 175,961.18 is: 242,829.20
Step by Step Solution
- Step 1: Write the proportion equation
311,924.58 : 430,460.84 = 175,961.18 : x - Step 2: Convert to fraction form
311,924.58/430,460.84 = 175,961.18/x - Step 3: Cross multiply
311,924.58x = 430,460.84 × 175,961.18 - Step 4: Simplify right side
311,924.58x = 75,744,397,546.54 - Step 5: Solve for x
x = 75,744,397,546.54/311,924.58 - Step 6: Final answer
x = 242,829.20
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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.