Finding the Fourth Proportional to 385,339.14, 578,174.79 and 160,743.78
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Solution
The fourth proportional to 385,339.14, 578,174.79 and 160,743.78 is: 241,184.95
Step by Step Solution
- Step 1: Write the proportion equation
385,339.14 : 578,174.79 = 160,743.78 : x - Step 2: Convert to fraction form
385,339.14/578,174.79 = 160,743.78/x - Step 3: Cross multiply
385,339.14x = 578,174.79 × 160,743.78 - Step 4: Simplify right side
385,339.14x = 92,938,001,245.31 - Step 5: Solve for x
x = 92,938,001,245.31/385,339.14 - Step 6: Final answer
x = 241,184.95
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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.