Finding the Fourth Proportional to 318,120.99, 477,102.78 and 190,072.23
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Solution
The fourth proportional to 318,120.99, 477,102.78 and 190,072.23 is: 285,061.32
Step by Step Solution
- Step 1: Write the proportion equation
318,120.99 : 477,102.78 = 190,072.23 : x - Step 2: Convert to fraction form
318,120.99/477,102.78 = 190,072.23/x - Step 3: Cross multiply
318,120.99x = 477,102.78 × 190,072.23 - Step 4: Simplify right side
318,120.99x = 90,683,989,333.80 - Step 5: Solve for x
x = 90,683,989,333.80/318,120.99 - Step 6: Final answer
x = 285,061.32
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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.