Finding the Fourth Proportional to 329,817.80, 494,726.70 and 143,193.80
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Solution
The fourth proportional to 329,817.80, 494,726.70 and 143,193.80 is: 214,790.70
Step by Step Solution
- Step 1: Write the proportion equation
329,817.80 : 494,726.70 = 143,193.80 : x - Step 2: Convert to fraction form
329,817.80/494,726.70 = 143,193.80/x - Step 3: Cross multiply
329,817.80x = 494,726.70 × 143,193.80 - Step 4: Simplify right side
329,817.80x = 70,841,796,134.46 - Step 5: Solve for x
x = 70,841,796,134.46/329,817.80 - Step 6: Final answer
x = 214,790.70
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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.