Finding the Fourth Proportional to 225,803.99, 311,619.60 and 135,142.71
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Solution
The fourth proportional to 225,803.99, 311,619.60 and 135,142.71 is: 186,502.99
Step by Step Solution
- Step 1: Write the proportion equation
225,803.99 : 311,619.60 = 135,142.71 : x - Step 2: Convert to fraction form
225,803.99/311,619.60 = 135,142.71/x - Step 3: Cross multiply
225,803.99x = 311,619.60 × 135,142.71 - Step 4: Simplify right side
225,803.99x = 42,113,117,233.12 - Step 5: Solve for x
x = 42,113,117,233.12/225,803.99 - Step 6: Final answer
x = 186,502.99
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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.