Finding the Fourth Proportional to 312,518.05, 468,774.34 and 75,860.96
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Solution
The fourth proportional to 312,518.05, 468,774.34 and 75,860.96 is: 113,790.77
Step by Step Solution
- Step 1: Write the proportion equation
312,518.05 : 468,774.34 = 75,860.96 : x - Step 2: Convert to fraction form
312,518.05/468,774.34 = 75,860.96/x - Step 3: Cross multiply
312,518.05x = 468,774.34 × 75,860.96 - Step 4: Simplify right side
312,518.05x = 35,561,668,922.24 - Step 5: Solve for x
x = 35,561,668,922.24/312,518.05 - Step 6: Final answer
x = 113,790.77
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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.