Finding the Fourth Proportional to 210,234.76, 290,121.70 and 114,740.68
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Solution
The fourth proportional to 210,234.76, 290,121.70 and 114,740.68 is: 158,340.90
Step by Step Solution
- Step 1: Write the proportion equation
210,234.76 : 290,121.70 = 114,740.68 : x - Step 2: Convert to fraction form
210,234.76/290,121.70 = 114,740.68/x - Step 3: Cross multiply
210,234.76x = 290,121.70 × 114,740.68 - Step 4: Simplify right side
210,234.76x = 33,288,761,140.76 - Step 5: Solve for x
x = 33,288,761,140.76/210,234.76 - Step 6: Final answer
x = 158,340.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.