Finding the Fourth Proportional to 399,853.18, 599,810.70 and 133,614.62
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Solution
The fourth proportional to 399,853.18, 599,810.70 and 133,614.62 is: 200,432.27
Step by Step Solution
- Step 1: Write the proportion equation
399,853.18 : 599,810.70 = 133,614.62 : x - Step 2: Convert to fraction form
399,853.18/599,810.70 = 133,614.62/x - Step 3: Cross multiply
399,853.18x = 599,810.70 × 133,614.62 - Step 4: Simplify right side
399,853.18x = 80,143,478,752.43 - Step 5: Solve for x
x = 80,143,478,752.43/399,853.18 - Step 6: Final answer
x = 200,432.27
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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.