Finding the Fourth Proportional to 355,691.20, 533,536.80 and 189,803.20
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Solution
The fourth proportional to 355,691.20, 533,536.80 and 189,803.20 is: 284,704.80
Step by Step Solution
- Step 1: Write the proportion equation
355,691.20 : 533,536.80 = 189,803.20 : x - Step 2: Convert to fraction form
355,691.20/533,536.80 = 189,803.20/x - Step 3: Cross multiply
355,691.20x = 533,536.80 × 189,803.20 - Step 4: Simplify right side
355,691.20x = 101,266,991,957.76 - Step 5: Solve for x
x = 101,266,991,957.76/355,691.20 - Step 6: Final answer
x = 284,704.80
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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.