Finding the Fourth Proportional to 381,975.20, 572,544.30 and 192,132.80
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Solution
The fourth proportional to 381,975.20, 572,544.30 and 192,132.80 is: 287,988.70
Step by Step Solution
- Step 1: Write the proportion equation
381,975.20 : 572,544.30 = 192,132.80 : x - Step 2: Convert to fraction form
381,975.20/572,544.30 = 192,132.80/x - Step 3: Cross multiply
381,975.20x = 572,544.30 × 192,132.80 - Step 4: Simplify right side
381,975.20x = 110,004,539,483.04 - Step 5: Solve for x
x = 110,004,539,483.04/381,975.20 - Step 6: Final answer
x = 287,988.70
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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.