Finding the Fourth Proportional to 215,380.68, 321,458.16 and 201,208.92
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Solution
The fourth proportional to 215,380.68, 321,458.16 and 201,208.92 is: 300,306.64
Step by Step Solution
- Step 1: Write the proportion equation
215,380.68 : 321,458.16 = 201,208.92 : x - Step 2: Convert to fraction form
215,380.68/321,458.16 = 201,208.92/x - Step 3: Cross multiply
215,380.68x = 321,458.16 × 201,208.92 - Step 4: Simplify right side
215,380.68x = 64,680,249,198.79 - Step 5: Solve for x
x = 64,680,249,198.79/215,380.68 - Step 6: Final answer
x = 300,306.64
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.