Finding the Fourth Proportional to 236,711.79, 326,657.23 and 129,282.25
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Solution
The fourth proportional to 236,711.79, 326,657.23 and 129,282.25 is: 178,406.75
Step by Step Solution
- Step 1: Write the proportion equation
236,711.79 : 326,657.23 = 129,282.25 : x - Step 2: Convert to fraction form
236,711.79/326,657.23 = 129,282.25/x - Step 3: Cross multiply
236,711.79x = 326,657.23 × 129,282.25 - Step 4: Simplify right side
236,711.79x = 42,230,982,428.13 - Step 5: Solve for x
x = 42,230,982,428.13/236,711.79 - Step 6: Final answer
x = 178,406.75
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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.