Finding the Fourth Proportional to 359,782.81, 539,575.70 and 135,125.87
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Solution
The fourth proportional to 359,782.81, 539,575.70 and 135,125.87 is: 202,651.80
Step by Step Solution
- Step 1: Write the proportion equation
359,782.81 : 539,575.70 = 135,125.87 : x - Step 2: Convert to fraction form
359,782.81/539,575.70 = 135,125.87/x - Step 3: Cross multiply
359,782.81x = 539,575.70 × 135,125.87 - Step 4: Simplify right side
359,782.81x = 72,910,632,519.85 - Step 5: Solve for x
x = 72,910,632,519.85/359,782.81 - Step 6: Final answer
x = 202,651.80
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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.