Finding the Fourth Proportional to 339,544.71, 509,538.20 and 129,184.47
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Solution
The fourth proportional to 339,544.71, 509,538.20 and 129,184.47 is: 193,860.84
Step by Step Solution
- Step 1: Write the proportion equation
339,544.71 : 509,538.20 = 129,184.47 : x - Step 2: Convert to fraction form
339,544.71/509,538.20 = 129,184.47/x - Step 3: Cross multiply
339,544.71x = 509,538.20 × 129,184.47 - Step 4: Simplify right side
339,544.71x = 65,824,421,665.83 - Step 5: Solve for x
x = 65,824,421,665.83/339,544.71 - Step 6: Final answer
x = 193,860.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.