Finding the Fourth Proportional to 358,985.44, 538,542.20 and 119,113.75
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Solution
The fourth proportional to 358,985.44, 538,542.20 and 119,113.75 is: 178,691.87
Step by Step Solution
- Step 1: Write the proportion equation
358,985.44 : 538,542.20 = 119,113.75 : x - Step 2: Convert to fraction form
358,985.44/538,542.20 = 119,113.75/x - Step 3: Cross multiply
358,985.44x = 538,542.20 × 119,113.75 - Step 4: Simplify right side
358,985.44x = 64,147,780,975.25 - Step 5: Solve for x
x = 64,147,780,975.25/358,985.44 - Step 6: Final answer
x = 178,691.87
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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.