Finding the Fourth Proportional to 311,919.56, 430,441.80 and 184,597.28
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Solution
The fourth proportional to 311,919.56, 430,441.80 and 184,597.28 is: 254,739.99
Step by Step Solution
- Step 1: Write the proportion equation
311,919.56 : 430,441.80 = 184,597.28 : x - Step 2: Convert to fraction form
311,919.56/430,441.80 = 184,597.28/x - Step 3: Cross multiply
311,919.56x = 430,441.80 × 184,597.28 - Step 4: Simplify right side
311,919.56x = 79,458,385,478.30 - Step 5: Solve for x
x = 79,458,385,478.30/311,919.56 - Step 6: Final answer
x = 254,739.99
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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.