Finding the Fourth Proportional to 307,198.26, 423,926.51 and 178,159.79
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Solution
The fourth proportional to 307,198.26, 423,926.51 and 178,159.79 is: 245,856.39
Step by Step Solution
- Step 1: Write the proportion equation
307,198.26 : 423,926.51 = 178,159.79 : x - Step 2: Convert to fraction form
307,198.26/423,926.51 = 178,159.79/x - Step 3: Cross multiply
307,198.26x = 423,926.51 × 178,159.79 - Step 4: Simplify right side
307,198.26x = 75,526,654,986.60 - Step 5: Solve for x
x = 75,526,654,986.60/307,198.26 - Step 6: Final answer
x = 245,856.39
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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.