Finding the Fourth Proportional to 339,613.80, 509,512.58 and 114,974.26
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Solution
The fourth proportional to 339,613.80, 509,512.58 and 114,974.26 is: 172,492.50
Step by Step Solution
- Step 1: Write the proportion equation
339,613.80 : 509,512.58 = 114,974.26 : x - Step 2: Convert to fraction form
339,613.80/509,512.58 = 114,974.26/x - Step 3: Cross multiply
339,613.80x = 509,512.58 × 114,974.26 - Step 4: Simplify right side
339,613.80x = 58,580,831,846.19 - Step 5: Solve for x
x = 58,580,831,846.19/339,613.80 - Step 6: Final answer
x = 172,492.50
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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.