Finding the Fourth Proportional to 251,357.77, 346,879.63 and 136,642.94
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Solution
The fourth proportional to 251,357.77, 346,879.63 and 136,642.94 is: 188,570.47
Step by Step Solution
- Step 1: Write the proportion equation
251,357.77 : 346,879.63 = 136,642.94 : x - Step 2: Convert to fraction form
251,357.77/346,879.63 = 136,642.94/x - Step 3: Cross multiply
251,357.77x = 346,879.63 × 136,642.94 - Step 4: Simplify right side
251,357.77x = 47,398,652,469.31 - Step 5: Solve for x
x = 47,398,652,469.31/251,357.77 - Step 6: Final answer
x = 188,570.47
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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.