Finding the Fourth Proportional to 291,034.08, 436,550.85 and 80,671.68
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Solution
The fourth proportional to 291,034.08, 436,550.85 and 80,671.68 is: 121,007.45
Step by Step Solution
- Step 1: Write the proportion equation
291,034.08 : 436,550.85 = 80,671.68 : x - Step 2: Convert to fraction form
291,034.08/436,550.85 = 80,671.68/x - Step 3: Cross multiply
291,034.08x = 436,550.85 × 80,671.68 - Step 4: Simplify right side
291,034.08x = 35,217,290,474.93 - Step 5: Solve for x
x = 35,217,290,474.93/291,034.08 - Step 6: Final answer
x = 121,007.45
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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.