Finding the Fourth Proportional to 299,405.80, 449,108.70 and 260,039.80
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Solution
The fourth proportional to 299,405.80, 449,108.70 and 260,039.80 is: 390,059.70
Step by Step Solution
- Step 1: Write the proportion equation
299,405.80 : 449,108.70 = 260,039.80 : x - Step 2: Convert to fraction form
299,405.80/449,108.70 = 260,039.80/x - Step 3: Cross multiply
299,405.80x = 449,108.70 × 260,039.80 - Step 4: Simplify right side
299,405.80x = 116,786,136,526.26 - Step 5: Solve for x
x = 116,786,136,526.26/299,405.80 - Step 6: Final answer
x = 390,059.70
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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.