Finding the Fourth Proportional to 354,464.48, 531,541.20 and 129,766.70
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Solution
The fourth proportional to 354,464.48, 531,541.20 and 129,766.70 is: 194,593.12
Step by Step Solution
- Step 1: Write the proportion equation
354,464.48 : 531,541.20 = 129,766.70 : x - Step 2: Convert to fraction form
354,464.48/531,541.20 = 129,766.70/x - Step 3: Cross multiply
354,464.48x = 531,541.20 × 129,766.70 - Step 4: Simplify right side
354,464.48x = 68,976,347,438.04 - Step 5: Solve for x
x = 68,976,347,438.04/354,464.48 - Step 6: Final answer
x = 194,593.12
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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.