Finding the Fourth Proportional to 299,782.80, 449,674.23 and 83,633.09
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Solution
The fourth proportional to 299,782.80, 449,674.23 and 83,633.09 is: 125,449.64
Step by Step Solution
- Step 1: Write the proportion equation
299,782.80 : 449,674.23 = 83,633.09 : x - Step 2: Convert to fraction form
299,782.80/449,674.23 = 83,633.09/x - Step 3: Cross multiply
299,782.80x = 449,674.23 × 83,633.09 - Step 4: Simplify right side
299,782.80x = 37,607,645,348.27 - Step 5: Solve for x
x = 37,607,645,348.27/299,782.80 - Step 6: Final answer
x = 125,449.64
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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.