Finding the Fourth Proportional to 180,933.12, 249,458.24 and 129,311.92
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Solution
The fourth proportional to 180,933.12, 249,458.24 and 129,311.92 is: 178,286.45
Step by Step Solution
- Step 1: Write the proportion equation
180,933.12 : 249,458.24 = 129,311.92 : x - Step 2: Convert to fraction form
180,933.12/249,458.24 = 129,311.92/x - Step 3: Cross multiply
180,933.12x = 249,458.24 × 129,311.92 - Step 4: Simplify right side
180,933.12x = 32,257,923,974.22 - Step 5: Solve for x
x = 32,257,923,974.22/180,933.12 - Step 6: Final answer
x = 178,286.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.