Finding the Fourth Proportional to 311,958.93, 430,508.37 and 175,995.51
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Solution
The fourth proportional to 311,958.93, 430,508.37 and 175,995.51 is: 242,876.65
Step by Step Solution
- Step 1: Write the proportion equation
311,958.93 : 430,508.37 = 175,995.51 : x - Step 2: Convert to fraction form
311,958.93/430,508.37 = 175,995.51/x - Step 3: Cross multiply
311,958.93x = 430,508.37 × 175,995.51 - Step 4: Simplify right side
311,958.93x = 75,767,540,137.42 - Step 5: Solve for x
x = 75,767,540,137.42/311,958.93 - Step 6: Final answer
x = 242,876.65
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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.