Finding the Fourth Proportional to 307,584.45, 461,212.65 and 129,890.70
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Solution
The fourth proportional to 307,584.45, 461,212.65 and 129,890.70 is: 194,766.78
Step by Step Solution
- Step 1: Write the proportion equation
307,584.45 : 461,212.65 = 129,890.70 : x - Step 2: Convert to fraction form
307,584.45/461,212.65 = 129,890.70/x - Step 3: Cross multiply
307,584.45x = 461,212.65 × 129,890.70 - Step 4: Simplify right side
307,584.45x = 59,907,233,957.36 - Step 5: Solve for x
x = 59,907,233,957.36/307,584.45 - Step 6: Final answer
x = 194,766.78
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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.