Finding the Fourth Proportional to 236,067.74, 325,773.36 and 128,637.62
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Solution
The fourth proportional to 236,067.74, 325,773.36 and 128,637.62 is: 177,519.85
Step by Step Solution
- Step 1: Write the proportion equation
236,067.74 : 325,773.36 = 128,637.62 : x - Step 2: Convert to fraction form
236,067.74/325,773.36 = 128,637.62/x - Step 3: Cross multiply
236,067.74x = 325,773.36 × 128,637.62 - Step 4: Simplify right side
236,067.74x = 41,906,709,689.80 - Step 5: Solve for x
x = 41,906,709,689.80/236,067.74 - Step 6: Final answer
x = 177,519.85
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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.