Finding the Fourth Proportional to 329,087.13, 493,630.70 and 79,769.13
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Solution
The fourth proportional to 329,087.13, 493,630.70 and 79,769.13 is: 119,653.70
Step by Step Solution
- Step 1: Write the proportion equation
329,087.13 : 493,630.70 = 79,769.13 : x - Step 2: Convert to fraction form
329,087.13/493,630.70 = 79,769.13/x - Step 3: Cross multiply
329,087.13x = 493,630.70 × 79,769.13 - Step 4: Simplify right side
329,087.13x = 39,376,491,480.29 - Step 5: Solve for x
x = 39,376,491,480.29/329,087.13 - Step 6: Final answer
x = 119,653.70
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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.