Finding the Fourth Proportional to 290,741.16, 436,119.93 and 80,379.08
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Solution
The fourth proportional to 290,741.16, 436,119.93 and 80,379.08 is: 120,570.88
Step by Step Solution
- Step 1: Write the proportion equation
290,741.16 : 436,119.93 = 80,379.08 : x - Step 2: Convert to fraction form
290,741.16/436,119.93 = 80,379.08/x - Step 3: Cross multiply
290,741.16x = 436,119.93 × 80,379.08 - Step 4: Simplify right side
290,741.16x = 35,054,916,562.46 - Step 5: Solve for x
x = 35,054,916,562.46/290,741.16 - Step 6: Final answer
x = 120,570.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.