Finding the Fourth Proportional to 149,228.80, 223,843.20 and 115,403.20
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Solution
The fourth proportional to 149,228.80, 223,843.20 and 115,403.20 is: 173,104.80
Step by Step Solution
- Step 1: Write the proportion equation
149,228.80 : 223,843.20 = 115,403.20 : x - Step 2: Convert to fraction form
149,228.80/223,843.20 = 115,403.20/x - Step 3: Cross multiply
149,228.80x = 223,843.20 × 115,403.20 - Step 4: Simplify right side
149,228.80x = 25,832,221,578.24 - Step 5: Solve for x
x = 25,832,221,578.24/149,228.80 - Step 6: Final answer
x = 173,104.80
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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.