Finding the Fourth Proportional to 225,878.29, 311,659.76 and 135,199.80
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Solution
The fourth proportional to 225,878.29, 311,659.76 and 135,199.80 is: 186,544.44
Step by Step Solution
- Step 1: Write the proportion equation
225,878.29 : 311,659.76 = 135,199.80 : x - Step 2: Convert to fraction form
225,878.29/311,659.76 = 135,199.80/x - Step 3: Cross multiply
225,878.29x = 311,659.76 × 135,199.80 - Step 4: Simplify right side
225,878.29x = 42,136,337,558.05 - Step 5: Solve for x
x = 42,136,337,558.05/225,878.29 - Step 6: Final answer
x = 186,544.44
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.