Finding the Fourth Proportional to 219,782.21, 329,660.56 and 84,819.88
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Solution
The fourth proportional to 219,782.21, 329,660.56 and 84,819.88 is: 127,224.90
Step by Step Solution
- Step 1: Write the proportion equation
219,782.21 : 329,660.56 = 84,819.88 : x - Step 2: Convert to fraction form
219,782.21/329,660.56 = 84,819.88/x - Step 3: Cross multiply
219,782.21x = 329,660.56 × 84,819.88 - Step 4: Simplify right side
219,782.21x = 27,961,769,658.03 - Step 5: Solve for x
x = 27,961,769,658.03/219,782.21 - Step 6: Final answer
x = 127,224.90
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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.