Finding the Fourth Proportional to 210,292.14, 315,487.93 and 68,137.18
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Solution
The fourth proportional to 210,292.14, 315,487.93 and 68,137.18 is: 102,221.88
Step by Step Solution
- Step 1: Write the proportion equation
210,292.14 : 315,487.93 = 68,137.18 : x - Step 2: Convert to fraction form
210,292.14/315,487.93 = 68,137.18/x - Step 3: Cross multiply
210,292.14x = 315,487.93 × 68,137.18 - Step 4: Simplify right side
210,292.14x = 21,496,457,874.24 - Step 5: Solve for x
x = 21,496,457,874.24/210,292.14 - Step 6: Final answer
x = 102,221.88
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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.