Finding the Fourth Proportional to 311,899.91, 430,403.94 and 175,925.75
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Solution
The fourth proportional to 311,899.91, 430,403.94 and 175,925.75 is: 242,767.42
Step by Step Solution
- Step 1: Write the proportion equation
311,899.91 : 430,403.94 = 175,925.75 : x - Step 2: Convert to fraction form
311,899.91/430,403.94 = 175,925.75/x - Step 3: Cross multiply
311,899.91x = 430,403.94 × 175,925.75 - Step 4: Simplify right side
311,899.91x = 75,719,133,795.44 - Step 5: Solve for x
x = 75,719,133,795.44/311,899.91 - Step 6: Final answer
x = 242,767.42
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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.