Finding the Fourth Proportional to 239,855.42, 359,778.08 and 79,942.92
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Solution
The fourth proportional to 239,855.42, 359,778.08 and 79,942.92 is: 119,912.70
Step by Step Solution
- Step 1: Write the proportion equation
239,855.42 : 359,778.08 = 79,942.92 : x - Step 2: Convert to fraction form
239,855.42/359,778.08 = 79,942.92/x - Step 3: Cross multiply
239,855.42x = 359,778.08 × 79,942.92 - Step 4: Simplify right side
239,855.42x = 28,761,710,267.19 - Step 5: Solve for x
x = 28,761,710,267.19/239,855.42 - Step 6: Final answer
x = 119,912.70
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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.