Finding the Fourth Proportional to 234,438.80, 351,658.20 and 76,629.20
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Solution
The fourth proportional to 234,438.80, 351,658.20 and 76,629.20 is: 114,943.80
Step by Step Solution
- Step 1: Write the proportion equation
234,438.80 : 351,658.20 = 76,629.20 : x - Step 2: Convert to fraction form
234,438.80/351,658.20 = 76,629.20/x - Step 3: Cross multiply
234,438.80x = 351,658.20 × 76,629.20 - Step 4: Simplify right side
234,438.80x = 26,947,286,539.44 - Step 5: Solve for x
x = 26,947,286,539.44/234,438.80 - Step 6: Final answer
x = 114,943.80
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1.5x scale
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.