Finding the Fourth Proportional to 339,375.80, 508,934.10 and 102,639.80
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Solution
The fourth proportional to 339,375.80, 508,934.10 and 102,639.80 is: 153,920.50
Step by Step Solution
- Step 1: Write the proportion equation
339,375.80 : 508,934.10 = 102,639.80 : x - Step 2: Convert to fraction form
339,375.80/508,934.10 = 102,639.80/x - Step 3: Cross multiply
339,375.80x = 508,934.10 × 102,639.80 - Step 4: Simplify right side
339,375.80x = 52,236,894,237.18 - Step 5: Solve for x
x = 52,236,894,237.18/339,375.80 - Step 6: Final answer
x = 153,920.50
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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.