Finding the Fourth Proportional to 339,511.23, 509,264.84 and 86,791.37
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Solution
The fourth proportional to 339,511.23, 509,264.84 and 86,791.37 is: 130,186.53
Step by Step Solution
- Step 1: Write the proportion equation
339,511.23 : 509,264.84 = 86,791.37 : x - Step 2: Convert to fraction form
339,511.23/509,264.84 = 86,791.37/x - Step 3: Cross multiply
339,511.23x = 509,264.84 × 86,791.37 - Step 4: Simplify right side
339,511.23x = 44,199,790,176.15 - Step 5: Solve for x
x = 44,199,790,176.15/339,511.23 - Step 6: Final answer
x = 130,186.53
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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.