Finding the Fourth Proportional to 307,580.20, 461,435.10 and 129,995.80
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Solution
The fourth proportional to 307,580.20, 461,435.10 and 129,995.80 is: 195,021.09
Step by Step Solution
- Step 1: Write the proportion equation
307,580.20 : 461,435.10 = 129,995.80 : x - Step 2: Convert to fraction form
307,580.20/461,435.10 = 129,995.80/x - Step 3: Cross multiply
307,580.20x = 461,435.10 × 129,995.80 - Step 4: Simplify right side
307,580.20x = 59,984,624,972.58 - Step 5: Solve for x
x = 59,984,624,972.58/307,580.20 - Step 6: Final answer
x = 195,021.09
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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.