Finding the Fourth Proportional to 408,235.26, 612,631.50 and 141,993.12
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Solution
The fourth proportional to 408,235.26, 612,631.50 and 141,993.12 is: 213,086.59
Step by Step Solution
- Step 1: Write the proportion equation
408,235.26 : 612,631.50 = 141,993.12 : x - Step 2: Convert to fraction form
408,235.26/612,631.50 = 141,993.12/x - Step 3: Cross multiply
408,235.26x = 612,631.50 × 141,993.12 - Step 4: Simplify right side
408,235.26x = 86,989,458,095.28 - Step 5: Solve for x
x = 86,989,458,095.28/408,235.26 - Step 6: Final answer
x = 213,086.59
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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.