Finding the Fourth Proportional to 399,652.40, 599,423.88 and 133,406.84
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Solution
The fourth proportional to 399,652.40, 599,423.88 and 133,406.84 is: 200,091.99
Step by Step Solution
- Step 1: Write the proportion equation
399,652.40 : 599,423.88 = 133,406.84 : x - Step 2: Convert to fraction form
399,652.40/599,423.88 = 133,406.84/x - Step 3: Cross multiply
399,652.40x = 599,423.88 × 133,406.84 - Step 4: Simplify right side
399,652.40x = 79,967,245,651.34 - Step 5: Solve for x
x = 79,967,245,651.34/399,652.40 - Step 6: Final answer
x = 200,091.99
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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.