Finding the Fourth Proportional to 236,718.14, 326,665.97 and 129,288.59
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Solution
The fourth proportional to 236,718.14, 326,665.97 and 129,288.59 is: 178,415.48
Step by Step Solution
- Step 1: Write the proportion equation
236,718.14 : 326,665.97 = 129,288.59 : x - Step 2: Convert to fraction form
236,718.14/326,665.97 = 129,288.59/x - Step 3: Cross multiply
236,718.14x = 326,665.97 × 129,288.59 - Step 4: Simplify right side
236,718.14x = 42,234,180,382.51 - Step 5: Solve for x
x = 42,234,180,382.51/236,718.14 - Step 6: Final answer
x = 178,415.48
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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.