Finding the Fourth Proportional to 358,163.80, 537,245.70 and 319,456.60
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Solution
The fourth proportional to 358,163.80, 537,245.70 and 319,456.60 is: 479,184.90
Step by Step Solution
- Step 1: Write the proportion equation
358,163.80 : 537,245.70 = 319,456.60 : x - Step 2: Convert to fraction form
358,163.80/537,245.70 = 319,456.60/x - Step 3: Cross multiply
358,163.80x = 537,245.70 × 319,456.60 - Step 4: Simplify right side
358,163.80x = 171,626,684,686.62 - Step 5: Solve for x
x = 171,626,684,686.62/358,163.80 - Step 6: Final answer
x = 479,184.90
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1.5x scale
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.