Finding the Fourth Proportional to 312,098.70, 430,694.49 and 176,176.80
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Solution
The fourth proportional to 312,098.70, 430,694.49 and 176,176.80 is: 243,123.02
Step by Step Solution
- Step 1: Write the proportion equation
312,098.70 : 430,694.49 = 176,176.80 : x - Step 2: Convert to fraction form
312,098.70/430,694.49 = 176,176.80/x - Step 3: Cross multiply
312,098.70x = 430,694.49 × 176,176.80 - Step 4: Simplify right side
312,098.70x = 75,878,377,025.83 - Step 5: Solve for x
x = 75,878,377,025.83/312,098.70 - Step 6: Final answer
x = 243,123.02
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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.