Finding the Fourth Proportional to 351,609.99, 485,192.95 and 198,661.44
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Solution
The fourth proportional to 351,609.99, 485,192.95 and 198,661.44 is: 274,136.49
Step by Step Solution
- Step 1: Write the proportion equation
351,609.99 : 485,192.95 = 198,661.44 : x - Step 2: Convert to fraction form
351,609.99/485,192.95 = 198,661.44/x - Step 3: Cross multiply
351,609.99x = 485,192.95 × 198,661.44 - Step 4: Simplify right side
351,609.99x = 96,389,130,124.85 - Step 5: Solve for x
x = 96,389,130,124.85/351,609.99 - Step 6: Final answer
x = 274,136.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.