Finding the Fourth Proportional to 311,885.70, 430,354.53 and 175,913.70
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Solution
The fourth proportional to 311,885.70, 430,354.53 and 175,913.70 is: 242,733.98
Step by Step Solution
- Step 1: Write the proportion equation
311,885.70 : 430,354.53 = 175,913.70 : x - Step 2: Convert to fraction form
311,885.70/430,354.53 = 175,913.70/x - Step 3: Cross multiply
311,885.70x = 430,354.53 × 175,913.70 - Step 4: Simplify right side
311,885.70x = 75,705,257,684.06 - Step 5: Solve for x
x = 75,705,257,684.06/311,885.70 - Step 6: Final answer
x = 242,733.98
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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.