Finding the Fourth Proportional to 186,966.63, 280,450.40 and 74,655.99
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Solution
The fourth proportional to 186,966.63, 280,450.40 and 74,655.99 is: 111,984.17
Step by Step Solution
- Step 1: Write the proportion equation
186,966.63 : 280,450.40 = 74,655.99 : x - Step 2: Convert to fraction form
186,966.63/280,450.40 = 74,655.99/x - Step 3: Cross multiply
186,966.63x = 280,450.40 × 74,655.99 - Step 4: Simplify right side
186,966.63x = 20,937,302,257.90 - Step 5: Solve for x
x = 20,937,302,257.90/186,966.63 - Step 6: Final answer
x = 111,984.17
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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.