Finding the Fourth Proportional to 311,634.20, 430,029.35 and 175,701.55
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Solution
The fourth proportional to 311,634.20, 430,029.35 and 175,701.55 is: 242,453.56
Step by Step Solution
- Step 1: Write the proportion equation
311,634.20 : 430,029.35 = 175,701.55 : x - Step 2: Convert to fraction form
311,634.20/430,029.35 = 175,701.55/x - Step 3: Cross multiply
311,634.20x = 430,029.35 × 175,701.55 - Step 4: Simplify right side
311,634.20x = 75,556,822,461.98 - Step 5: Solve for x
x = 75,556,822,461.98/311,634.20 - Step 6: Final answer
x = 242,453.56
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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.