Finding the Fourth Proportional to 228,195.10, 314,920.32 and 126,220.14
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Solution
The fourth proportional to 228,195.10, 314,920.32 and 126,220.14 is: 174,189.92
Step by Step Solution
- Step 1: Write the proportion equation
228,195.10 : 314,920.32 = 126,220.14 : x - Step 2: Convert to fraction form
228,195.10/314,920.32 = 126,220.14/x - Step 3: Cross multiply
228,195.10x = 314,920.32 × 126,220.14 - Step 4: Simplify right side
228,195.10x = 39,749,286,879.24 - Step 5: Solve for x
x = 39,749,286,879.24/228,195.10 - Step 6: Final answer
x = 174,189.92
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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.