Finding the Fourth Proportional to 311,850.21, 430,353.20 and 175,883.88
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Solution
The fourth proportional to 311,850.21, 430,353.20 and 175,883.88 is: 242,719.71
Step by Step Solution
- Step 1: Write the proportion equation
311,850.21 : 430,353.20 = 175,883.88 : x - Step 2: Convert to fraction form
311,850.21/430,353.20 = 175,883.88/x - Step 3: Cross multiply
311,850.21x = 430,353.20 × 175,883.88 - Step 4: Simplify right side
311,850.21x = 75,692,191,026.13 - Step 5: Solve for x
x = 75,692,191,026.13/311,850.21 - Step 6: Final answer
x = 242,719.71
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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.