Finding the Fourth Proportional to 399,553.38, 599,129.43 and 133,219.62
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Solution
The fourth proportional to 399,553.38, 599,129.43 and 133,219.62 is: 199,762.53
Step by Step Solution
- Step 1: Write the proportion equation
399,553.38 : 599,129.43 = 133,219.62 : x - Step 2: Convert to fraction form
399,553.38/599,129.43 = 133,219.62/x - Step 3: Cross multiply
399,553.38x = 599,129.43 × 133,219.62 - Step 4: Simplify right side
399,553.38x = 79,815,794,995.42 - Step 5: Solve for x
x = 79,815,794,995.42/399,553.38 - Step 6: Final answer
x = 199,762.53
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1.5x scale
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.