Finding the Fourth Proportional to 298,961.87, 412,561.81 and 162,996.99
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Solution
The fourth proportional to 298,961.87, 412,561.81 and 162,996.99 is: 224,932.81
Step by Step Solution
- Step 1: Write the proportion equation
298,961.87 : 412,561.81 = 162,996.99 : x - Step 2: Convert to fraction form
298,961.87/412,561.81 = 162,996.99/x - Step 3: Cross multiply
298,961.87x = 412,561.81 × 162,996.99 - Step 4: Simplify right side
298,961.87x = 67,246,333,422.70 - Step 5: Solve for x
x = 67,246,333,422.70/298,961.87 - Step 6: Final answer
x = 224,932.81
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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.