Finding the Fourth Proportional to 329,171.20, 493,879.76 and 129,630.67
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Solution
The fourth proportional to 329,171.20, 493,879.76 and 129,630.67 is: 194,494.43
Step by Step Solution
- Step 1: Write the proportion equation
329,171.20 : 493,879.76 = 129,630.67 : x - Step 2: Convert to fraction form
329,171.20/493,879.76 = 129,630.67/x - Step 3: Cross multiply
329,171.20x = 493,879.76 × 129,630.67 - Step 4: Simplify right side
329,171.20x = 64,021,964,188.24 - Step 5: Solve for x
x = 64,021,964,188.24/329,171.20 - Step 6: Final answer
x = 194,494.43
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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.