Finding the Fourth Proportional to 236,732.79, 326,689.10 and 129,302.80
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Solution
The fourth proportional to 236,732.79, 326,689.10 and 129,302.80 is: 178,436.68
Step by Step Solution
- Step 1: Write the proportion equation
236,732.79 : 326,689.10 = 129,302.80 : x - Step 2: Convert to fraction form
236,732.79/326,689.10 = 129,302.80/x - Step 3: Cross multiply
236,732.79x = 326,689.10 × 129,302.80 - Step 4: Simplify right side
236,732.79x = 42,241,814,381.13 - Step 5: Solve for x
x = 42,241,814,381.13/236,732.79 - Step 6: Final answer
x = 178,436.68
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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.