Finding the Fourth Proportional to 298,195.09, 447,281.87 and 129,715.53
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Solution
The fourth proportional to 298,195.09, 447,281.87 and 129,715.53 is: 194,568.61
Step by Step Solution
- Step 1: Write the proportion equation
298,195.09 : 447,281.87 = 129,715.53 : x - Step 2: Convert to fraction form
298,195.09/447,281.87 = 129,715.53/x - Step 3: Cross multiply
298,195.09x = 447,281.87 × 129,715.53 - Step 4: Simplify right side
298,195.09x = 58,019,404,177.86 - Step 5: Solve for x
x = 58,019,404,177.86/298,195.09 - Step 6: Final answer
x = 194,568.61
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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.