Finding the Fourth Proportional to 225,615.20, 338,422.80 and 201,120.80
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Solution
The fourth proportional to 225,615.20, 338,422.80 and 201,120.80 is: 301,681.20
Step by Step Solution
- Step 1: Write the proportion equation
225,615.20 : 338,422.80 = 201,120.80 : x - Step 2: Convert to fraction form
225,615.20/338,422.80 = 201,120.80/x - Step 3: Cross multiply
225,615.20x = 338,422.80 × 201,120.80 - Step 4: Simplify right side
225,615.20x = 68,063,864,274.24 - Step 5: Solve for x
x = 68,063,864,274.24/225,615.20 - Step 6: Final answer
x = 301,681.20
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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.