Finding the Fourth Proportional to 174,609.28, 261,830.94 and 79,811.68
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Solution
The fourth proportional to 174,609.28, 261,830.94 and 79,811.68 is: 119,679.59
Step by Step Solution
- Step 1: Write the proportion equation
174,609.28 : 261,830.94 = 79,811.68 : x - Step 2: Convert to fraction form
174,609.28/261,830.94 = 79,811.68/x - Step 3: Cross multiply
174,609.28x = 261,830.94 × 79,811.68 - Step 4: Simplify right side
174,609.28x = 20,897,167,197.38 - Step 5: Solve for x
x = 20,897,167,197.38/174,609.28 - Step 6: Final answer
x = 119,679.59
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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.