Finding the Fourth Proportional to 329,117.80, 493,676.70 and 129,371.80
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Solution
The fourth proportional to 329,117.80, 493,676.70 and 129,371.80 is: 194,057.70
Step by Step Solution
- Step 1: Write the proportion equation
329,117.80 : 493,676.70 = 129,371.80 : x - Step 2: Convert to fraction form
329,117.80/493,676.70 = 129,371.80/x - Step 3: Cross multiply
329,117.80x = 493,676.70 × 129,371.80 - Step 4: Simplify right side
329,117.80x = 63,867,843,297.06 - Step 5: Solve for x
x = 63,867,843,297.06/329,117.80 - Step 6: Final answer
x = 194,057.70
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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.