Finding the Fourth Proportional to 399,578.84, 599,368.65 and 111,378.96
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Solution
The fourth proportional to 399,578.84, 599,368.65 and 111,378.96 is: 167,068.56
Step by Step Solution
- Step 1: Write the proportion equation
399,578.84 : 599,368.65 = 111,378.96 : x - Step 2: Convert to fraction form
399,578.84/599,368.65 = 111,378.96/x - Step 3: Cross multiply
399,578.84x = 599,368.65 × 111,378.96 - Step 4: Simplify right side
399,578.84x = 66,757,058,723.57 - Step 5: Solve for x
x = 66,757,058,723.57/399,578.84 - Step 6: Final answer
x = 167,068.56
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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.