Finding the Fourth Proportional to 201,613.20, 302,419.80 and 141,478.80
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Solution
The fourth proportional to 201,613.20, 302,419.80 and 141,478.80 is: 212,218.20
Step by Step Solution
- Step 1: Write the proportion equation
201,613.20 : 302,419.80 = 141,478.80 : x - Step 2: Convert to fraction form
201,613.20/302,419.80 = 141,478.80/x - Step 3: Cross multiply
201,613.20x = 302,419.80 × 141,478.80 - Step 4: Simplify right side
201,613.20x = 42,785,990,400.24 - Step 5: Solve for x
x = 42,785,990,400.24/201,613.20 - Step 6: Final answer
x = 212,218.20
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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.