Finding the Fourth Proportional to 298,511.53, 411,245.09 and 207,711.54
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Solution
The fourth proportional to 298,511.53, 411,245.09 and 207,711.54 is: 286,154.28
Step by Step Solution
- Step 1: Write the proportion equation
298,511.53 : 411,245.09 = 207,711.54 : x - Step 2: Convert to fraction form
298,511.53/411,245.09 = 207,711.54/x - Step 3: Cross multiply
298,511.53x = 411,245.09 × 207,711.54 - Step 4: Simplify right side
298,511.53x = 85,420,350,961.34 - Step 5: Solve for x
x = 85,420,350,961.34/298,511.53 - Step 6: Final answer
x = 286,154.28
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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.