Finding the Fourth Proportional to 311,977.56, 430,519.11 and 176,009.70
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Solution
The fourth proportional to 311,977.56, 430,519.11 and 176,009.70 is: 242,887.79
Step by Step Solution
- Step 1: Write the proportion equation
311,977.56 : 430,519.11 = 176,009.70 : x - Step 2: Convert to fraction form
311,977.56/430,519.11 = 176,009.70/x - Step 3: Cross multiply
311,977.56x = 430,519.11 × 176,009.70 - Step 4: Simplify right side
311,977.56x = 75,775,539,395.37 - Step 5: Solve for x
x = 75,775,539,395.37/311,977.56 - Step 6: Final answer
x = 242,887.79
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1.5x scale
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.