Finding the Fourth Proportional to 236,875.14, 326,891.97 and 129,449.70
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Solution
The fourth proportional to 236,875.14, 326,891.97 and 129,449.70 is: 178,642.92
Step by Step Solution
- Step 1: Write the proportion equation
236,875.14 : 326,891.97 = 129,449.70 : x - Step 2: Convert to fraction form
236,875.14/326,891.97 = 129,449.70/x - Step 3: Cross multiply
236,875.14x = 326,891.97 × 129,449.70 - Step 4: Simplify right side
236,875.14x = 42,316,067,448.91 - Step 5: Solve for x
x = 42,316,067,448.91/236,875.14 - Step 6: Final answer
x = 178,642.92
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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.