Finding the Fourth Proportional to 210,123.67, 313,546.62 and 187,478.70
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Solution
The fourth proportional to 210,123.67, 313,546.62 and 187,478.70 is: 279,755.79
Step by Step Solution
- Step 1: Write the proportion equation
210,123.67 : 313,546.62 = 187,478.70 : x - Step 2: Convert to fraction form
210,123.67/313,546.62 = 187,478.70/x - Step 3: Cross multiply
210,123.67x = 313,546.62 × 187,478.70 - Step 4: Simplify right side
210,123.67x = 58,783,311,607.96 - Step 5: Solve for x
x = 58,783,311,607.96/210,123.67 - Step 6: Final answer
x = 279,755.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.