Finding the Fourth Proportional to 380,944.36, 525,629.18 and 225,866.99
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Solution
The fourth proportional to 380,944.36, 525,629.18 and 225,866.99 is: 311,652.55
Step by Step Solution
- Step 1: Write the proportion equation
380,944.36 : 525,629.18 = 225,866.99 : x - Step 2: Convert to fraction form
380,944.36/525,629.18 = 225,866.99/x - Step 3: Cross multiply
380,944.36x = 525,629.18 × 225,866.99 - Step 4: Simplify right side
380,944.36x = 118,722,280,742.77 - Step 5: Solve for x
x = 118,722,280,742.77/380,944.36 - Step 6: Final answer
x = 311,652.55
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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.