Finding the Fourth Proportional to 313,673.21, 469,878.32 and 144,961.19
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Solution
The fourth proportional to 313,673.21, 469,878.32 and 144,961.19 is: 217,149.95
Step by Step Solution
- Step 1: Write the proportion equation
313,673.21 : 469,878.32 = 144,961.19 : x - Step 2: Convert to fraction form
313,673.21/469,878.32 = 144,961.19/x - Step 3: Cross multiply
313,673.21x = 469,878.32 × 144,961.19 - Step 4: Simplify right side
313,673.21x = 68,114,122,025.11 - Step 5: Solve for x
x = 68,114,122,025.11/313,673.21 - Step 6: Final answer
x = 217,149.95
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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.