Finding the Fourth Proportional to 399,684.24, 599,501.70 and 133,422.44
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Solution
The fourth proportional to 399,684.24, 599,501.70 and 133,422.44 is: 200,125.42
Step by Step Solution
- Step 1: Write the proportion equation
399,684.24 : 599,501.70 = 133,422.44 : x - Step 2: Convert to fraction form
399,684.24/599,501.70 = 133,422.44/x - Step 3: Cross multiply
399,684.24x = 599,501.70 × 133,422.44 - Step 4: Simplify right side
399,684.24x = 79,986,976,600.64 - Step 5: Solve for x
x = 79,986,976,600.64/399,684.24 - Step 6: Final answer
x = 200,125.42
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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.