Finding the Fourth Proportional to 389,630.42, 583,975.35 and 189,651.14
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Solution
The fourth proportional to 389,630.42, 583,975.35 and 189,651.14 is: 284,247.80
Step by Step Solution
- Step 1: Write the proportion equation
389,630.42 : 583,975.35 = 189,651.14 : x - Step 2: Convert to fraction form
389,630.42/583,975.35 = 189,651.14/x - Step 3: Cross multiply
389,630.42x = 583,975.35 × 189,651.14 - Step 4: Simplify right side
389,630.42x = 110,751,590,859.40 - Step 5: Solve for x
x = 110,751,590,859.40/389,630.42 - Step 6: Final answer
x = 284,247.80
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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.