Finding the Fourth Proportional to 212,751.50, 319,181.94 and 79,633.68
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Solution
The fourth proportional to 212,751.50, 319,181.94 and 79,633.68 is: 119,470.99
Step by Step Solution
- Step 1: Write the proportion equation
212,751.50 : 319,181.94 = 79,633.68 : x - Step 2: Convert to fraction form
212,751.50/319,181.94 = 79,633.68/x - Step 3: Cross multiply
212,751.50x = 319,181.94 × 79,633.68 - Step 4: Simplify right side
212,751.50x = 25,417,632,471.74 - Step 5: Solve for x
x = 25,417,632,471.74/212,751.50 - Step 6: Final answer
x = 119,470.99
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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.