Finding the Fourth Proportional to 231,905.84, 347,854.20 and 74,134.14
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Solution
The fourth proportional to 231,905.84, 347,854.20 and 74,134.14 is: 111,199.75
Step by Step Solution
- Step 1: Write the proportion equation
231,905.84 : 347,854.20 = 74,134.14 : x - Step 2: Convert to fraction form
231,905.84/347,854.20 = 74,134.14/x - Step 3: Cross multiply
231,905.84x = 347,854.20 × 74,134.14 - Step 4: Simplify right side
231,905.84x = 25,787,870,379.93 - Step 5: Solve for x
x = 25,787,870,379.93/231,905.84 - Step 6: Final answer
x = 111,199.75
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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.