Finding the Fourth Proportional to 135,244.80, 202,867.20 and 72,259.20
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Solution
The fourth proportional to 135,244.80, 202,867.20 and 72,259.20 is: 108,388.80
Step by Step Solution
- Step 1: Write the proportion equation
135,244.80 : 202,867.20 = 72,259.20 : x - Step 2: Convert to fraction form
135,244.80/202,867.20 = 72,259.20/x - Step 3: Cross multiply
135,244.80x = 202,867.20 × 72,259.20 - Step 4: Simplify right side
135,244.80x = 14,659,021,578.24 - Step 5: Solve for x
x = 14,659,021,578.24/135,244.80 - Step 6: Final answer
x = 108,388.80
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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.