Finding the Fourth Proportional to 210,134.44, 289,942.14 and 122,902.84
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Solution
The fourth proportional to 210,134.44, 289,942.14 and 122,902.84 is: 169,580.54
Step by Step Solution
- Step 1: Write the proportion equation
210,134.44 : 289,942.14 = 122,902.84 : x - Step 2: Convert to fraction form
210,134.44/289,942.14 = 122,902.84/x - Step 3: Cross multiply
210,134.44x = 289,942.14 × 122,902.84 - Step 4: Simplify right side
210,134.44x = 35,634,712,441.68 - Step 5: Solve for x
x = 35,634,712,441.68/210,134.44 - Step 6: Final answer
x = 169,580.54
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1.5x scale
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.