Finding the Fourth Proportional to 236,578.94, 326,479.54 and 129,149.06
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Solution
The fourth proportional to 236,578.94, 326,479.54 and 129,149.06 is: 178,226.03
Step by Step Solution
- Step 1: Write the proportion equation
236,578.94 : 326,479.54 = 129,149.06 : x - Step 2: Convert to fraction form
236,578.94/326,479.54 = 129,149.06/x - Step 3: Cross multiply
236,578.94x = 326,479.54 × 129,149.06 - Step 4: Simplify right side
236,578.94x = 42,164,525,700.23 - Step 5: Solve for x
x = 42,164,525,700.23/236,578.94 - Step 6: Final answer
x = 178,226.03
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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.