Finding the Fourth Proportional to 214,343.74, 321,515.69 and 79,454.19
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Solution
The fourth proportional to 214,343.74, 321,515.69 and 79,454.19 is: 119,181.31
Step by Step Solution
- Step 1: Write the proportion equation
214,343.74 : 321,515.69 = 79,454.19 : x - Step 2: Convert to fraction form
214,343.74/321,515.69 = 79,454.19/x - Step 3: Cross multiply
214,343.74x = 321,515.69 × 79,454.19 - Step 4: Simplify right side
214,343.74x = 25,545,768,721.24 - Step 5: Solve for x
x = 25,545,768,721.24/214,343.74 - Step 6: Final answer
x = 119,181.31
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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.