Finding the Fourth Proportional to 209,912.94, 314,937.48 and 125,659.98
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Solution
The fourth proportional to 209,912.94, 314,937.48 and 125,659.98 is: 188,530.72
Step by Step Solution
- Step 1: Write the proportion equation
209,912.94 : 314,937.48 = 125,659.98 : x - Step 2: Convert to fraction form
209,912.94/314,937.48 = 125,659.98/x - Step 3: Cross multiply
209,912.94x = 314,937.48 × 125,659.98 - Step 4: Simplify right side
209,912.94x = 39,575,037,438.05 - Step 5: Solve for x
x = 39,575,037,438.05/209,912.94 - Step 6: Final answer
x = 188,530.72
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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.