Finding the Fourth Proportional to 311,898.69, 430,402.29 and 175,924.53
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Solution
The fourth proportional to 311,898.69, 430,402.29 and 175,924.53 is: 242,765.75
Step by Step Solution
- Step 1: Write the proportion equation
311,898.69 : 430,402.29 = 175,924.53 : x - Step 2: Convert to fraction form
311,898.69/430,402.29 = 175,924.53/x - Step 3: Cross multiply
311,898.69x = 430,402.29 × 175,924.53 - Step 4: Simplify right side
311,898.69x = 75,718,319,919.46 - Step 5: Solve for x
x = 75,718,319,919.46/311,898.69 - Step 6: Final answer
x = 242,765.75
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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.