Finding the Fourth Proportional to 214,340.74, 321,511.18 and 79,451.19
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Solution
The fourth proportional to 214,340.74, 321,511.18 and 79,451.19 is: 119,176.81
Step by Step Solution
- Step 1: Write the proportion equation
214,340.74 : 321,511.18 = 79,451.19 : x - Step 2: Convert to fraction form
214,340.74/321,511.18 = 79,451.19/x - Step 3: Cross multiply
214,340.74x = 321,511.18 × 79,451.19 - Step 4: Simplify right side
214,340.74x = 25,544,445,849.30 - Step 5: Solve for x
x = 25,544,445,849.30/214,340.74 - Step 6: Final answer
x = 119,176.81
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1.5x scale
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.