Finding the Fourth Proportional to 154,313.63, 231,345.88 and 141,857.99
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Solution
The fourth proportional to 154,313.63, 231,345.88 and 141,857.99 is: 212,672.47
Step by Step Solution
- Step 1: Write the proportion equation
154,313.63 : 231,345.88 = 141,857.99 : x - Step 2: Convert to fraction form
154,313.63/231,345.88 = 141,857.99/x - Step 3: Cross multiply
154,313.63x = 231,345.88 × 141,857.99 - Step 4: Simplify right side
154,313.63x = 32,818,261,531.58 - Step 5: Solve for x
x = 32,818,261,531.58/154,313.63 - Step 6: Final answer
x = 212,672.47
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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.