Finding the Fourth Proportional to 239,591.91, 359,420.28 and 81,777.99
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Solution
The fourth proportional to 239,591.91, 359,420.28 and 81,777.99 is: 122,678.05
Step by Step Solution
- Step 1: Write the proportion equation
239,591.91 : 359,420.28 = 81,777.99 : x - Step 2: Convert to fraction form
239,591.91/359,420.28 = 81,777.99/x - Step 3: Cross multiply
239,591.91x = 359,420.28 × 81,777.99 - Step 4: Simplify right side
239,591.91x = 29,392,668,063.64 - Step 5: Solve for x
x = 29,392,668,063.64/239,591.91 - Step 6: Final answer
x = 122,678.05
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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.