Finding the Fourth Proportional to 278,703.99, 418,063.86 and 68,341.68
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Solution
The fourth proportional to 278,703.99, 418,063.86 and 68,341.68 is: 102,514.45
Step by Step Solution
- Step 1: Write the proportion equation
278,703.99 : 418,063.86 = 68,341.68 : x - Step 2: Convert to fraction form
278,703.99/418,063.86 = 68,341.68/x - Step 3: Cross multiply
278,703.99x = 418,063.86 × 68,341.68 - Step 4: Simplify right side
278,703.99x = 28,571,186,539.68 - Step 5: Solve for x
x = 28,571,186,539.68/278,703.99 - Step 6: Final answer
x = 102,514.45
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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.