Finding the Fourth Proportional to 311,921.70, 467,882.55 and 171,953.70
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Solution
The fourth proportional to 311,921.70, 467,882.55 and 171,953.70 is: 257,930.55
Step by Step Solution
- Step 1: Write the proportion equation
311,921.70 : 467,882.55 = 171,953.70 : x - Step 2: Convert to fraction form
311,921.70/467,882.55 = 171,953.70/x - Step 3: Cross multiply
311,921.70x = 467,882.55 × 171,953.70 - Step 4: Simplify right side
311,921.70x = 80,454,135,637.94 - Step 5: Solve for x
x = 80,454,135,637.94/311,921.70 - Step 6: Final answer
x = 257,930.55
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1.5x scale
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.