Finding the Fourth Proportional to 209,126.57, 313,690.91 and 51,355.08
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Solution
The fourth proportional to 209,126.57, 313,690.91 and 51,355.08 is: 77,032.88
Step by Step Solution
- Step 1: Write the proportion equation
209,126.57 : 313,690.91 = 51,355.08 : x - Step 2: Convert to fraction form
209,126.57/313,690.91 = 51,355.08/x - Step 3: Cross multiply
209,126.57x = 313,690.91 × 51,355.08 - Step 4: Simplify right side
209,126.57x = 16,109,621,521.55 - Step 5: Solve for x
x = 16,109,621,521.55/209,126.57 - Step 6: Final answer
x = 77,032.88
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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.