Finding the Fourth Proportional to 236,710.62, 326,655.42 and 129,281.09
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Solution
The fourth proportional to 236,710.62, 326,655.42 and 129,281.09 is: 178,405.04
Step by Step Solution
- Step 1: Write the proportion equation
236,710.62 : 326,655.42 = 129,281.09 : x - Step 2: Convert to fraction form
236,710.62/326,655.42 = 129,281.09/x - Step 3: Cross multiply
236,710.62x = 326,655.42 × 129,281.09 - Step 4: Simplify right side
236,710.62x = 42,230,367,118.73 - Step 5: Solve for x
x = 42,230,367,118.73/236,710.62 - Step 6: Final answer
x = 178,405.04
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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.