Finding the Fourth Proportional to 251,145.92, 346,427.64 and 149,102.12
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Solution
The fourth proportional to 251,145.92, 346,427.64 and 149,102.12 is: 205,669.66
Step by Step Solution
- Step 1: Write the proportion equation
251,145.92 : 346,427.64 = 149,102.12 : x - Step 2: Convert to fraction form
251,145.92/346,427.64 = 149,102.12/x - Step 3: Cross multiply
251,145.92x = 346,427.64 × 149,102.12 - Step 4: Simplify right side
251,145.92x = 51,653,095,550.60 - Step 5: Solve for x
x = 51,653,095,550.60/251,145.92 - Step 6: Final answer
x = 205,669.66
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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.