Finding the Fourth Proportional to 236,538.62, 326,410.91 and 129,106.80
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Solution
The fourth proportional to 236,538.62, 326,410.91 and 129,106.80 is: 178,160.62
Step by Step Solution
- Step 1: Write the proportion equation
236,538.62 : 326,410.91 = 129,106.80 : x - Step 2: Convert to fraction form
236,538.62/326,410.91 = 129,106.80/x - Step 3: Cross multiply
236,538.62x = 326,410.91 × 129,106.80 - Step 4: Simplify right side
236,538.62x = 42,141,867,429.65 - Step 5: Solve for x
x = 42,141,867,429.65/236,538.62 - Step 6: Final answer
x = 178,160.62
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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.