Finding the Fourth Proportional to 236,911.28, 326,932.70 and 129,482.07
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Solution
The fourth proportional to 236,911.28, 326,932.70 and 129,482.07 is: 178,682.60
Step by Step Solution
- Step 1: Write the proportion equation
236,911.28 : 326,932.70 = 129,482.07 : x - Step 2: Convert to fraction form
236,911.28/326,932.70 = 129,482.07/x - Step 3: Cross multiply
236,911.28x = 326,932.70 × 129,482.07 - Step 4: Simplify right side
236,911.28x = 42,331,922,099.28 - Step 5: Solve for x
x = 42,331,922,099.28/236,911.28 - Step 6: Final answer
x = 178,682.60
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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.