Finding the Fourth Proportional to 236,908.23, 326,932.57 and 129,478.23
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Solution
The fourth proportional to 236,908.23, 326,932.57 and 129,478.23 is: 178,679.53
Step by Step Solution
- Step 1: Write the proportion equation
236,908.23 : 326,932.57 = 129,478.23 : x - Step 2: Convert to fraction form
236,908.23/326,932.57 = 129,478.23/x - Step 3: Cross multiply
236,908.23x = 326,932.57 × 129,478.23 - Step 4: Simplify right side
236,908.23x = 42,330,650,654.80 - Step 5: Solve for x
x = 42,330,650,654.80/236,908.23 - Step 6: Final answer
x = 178,679.53
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1.5x scale
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.