Finding the Fourth Proportional to 225,623.20, 338,434.80 and 201,128.80
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Solution
The fourth proportional to 225,623.20, 338,434.80 and 201,128.80 is: 301,693.20
Step by Step Solution
- Step 1: Write the proportion equation
225,623.20 : 338,434.80 = 201,128.80 : x - Step 2: Convert to fraction form
225,623.20/338,434.80 = 201,128.80/x - Step 3: Cross multiply
225,623.20x = 338,434.80 × 201,128.80 - Step 4: Simplify right side
225,623.20x = 68,068,985,202.24 - Step 5: Solve for x
x = 68,068,985,202.24/225,623.20 - Step 6: Final answer
x = 301,693.20
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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.