Finding the Fourth Proportional to 206,642.70, 310,158.09 and 101,537.10
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Solution
The fourth proportional to 206,642.70, 310,158.09 and 101,537.10 is: 152,400.99
Step by Step Solution
- Step 1: Write the proportion equation
206,642.70 : 310,158.09 = 101,537.10 : x - Step 2: Convert to fraction form
206,642.70/310,158.09 = 101,537.10/x - Step 3: Cross multiply
206,642.70x = 310,158.09 × 101,537.10 - Step 4: Simplify right side
206,642.70x = 31,492,553,000.14 - Step 5: Solve for x
x = 31,492,553,000.14/206,642.70 - Step 6: Final answer
x = 152,400.99
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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.