Finding the Fourth Proportional to 312,949.14, 469,511.20 and 102,734.70
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Solution
The fourth proportional to 312,949.14, 469,511.20 and 102,734.70 is: 154,130.77
Step by Step Solution
- Step 1: Write the proportion equation
312,949.14 : 469,511.20 = 102,734.70 : x - Step 2: Convert to fraction form
312,949.14/469,511.20 = 102,734.70/x - Step 3: Cross multiply
312,949.14x = 469,511.20 × 102,734.70 - Step 4: Simplify right side
312,949.14x = 48,235,092,278.64 - Step 5: Solve for x
x = 48,235,092,278.64/312,949.14 - Step 6: Final answer
x = 154,130.77
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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.