Finding the Fourth Proportional to 236,941.76, 326,988.42 and 129,519.08
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Solution
The fourth proportional to 236,941.76, 326,988.42 and 129,519.08 is: 178,741.14
Step by Step Solution
- Step 1: Write the proportion equation
236,941.76 : 326,988.42 = 129,519.08 : x - Step 2: Convert to fraction form
236,941.76/326,988.42 = 129,519.08/x - Step 3: Cross multiply
236,941.76x = 326,988.42 × 129,519.08 - Step 4: Simplify right side
236,941.76x = 42,351,239,329.05 - Step 5: Solve for x
x = 42,351,239,329.05/236,941.76 - Step 6: Final answer
x = 178,741.14
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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.