Finding the Fourth Proportional to 119,216.41, 178,824.31 and 40,385.99
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Solution
The fourth proportional to 119,216.41, 178,824.31 and 40,385.99 is: 60,578.89
Step by Step Solution
- Step 1: Write the proportion equation
119,216.41 : 178,824.31 = 40,385.99 : x - Step 2: Convert to fraction form
119,216.41/178,824.31 = 40,385.99/x - Step 3: Cross multiply
119,216.41x = 178,824.31 × 40,385.99 - Step 4: Simplify right side
119,216.41x = 7,221,997,141.51 - Step 5: Solve for x
x = 7,221,997,141.51/119,216.41 - Step 6: Final answer
x = 60,578.89
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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.