Finding the Fourth Proportional to 209,474.40, 314,867.70 and 205,537.80
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Solution
The fourth proportional to 209,474.40, 314,867.70 and 205,537.80 is: 308,950.47
Step by Step Solution
- Step 1: Write the proportion equation
209,474.40 : 314,867.70 = 205,537.80 : x - Step 2: Convert to fraction form
209,474.40/314,867.70 = 205,537.80/x - Step 3: Cross multiply
209,474.40x = 314,867.70 × 205,537.80 - Step 4: Simplify right side
209,474.40x = 64,717,214,349.06 - Step 5: Solve for x
x = 64,717,214,349.06/209,474.40 - Step 6: Final answer
x = 308,950.47
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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.