Finding the Fourth Proportional to 312,152.40, 430,771.80 and 176,192.10
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Solution
The fourth proportional to 312,152.40, 430,771.80 and 176,192.10 is: 243,145.94
Step by Step Solution
- Step 1: Write the proportion equation
312,152.40 : 430,771.80 = 176,192.10 : x - Step 2: Convert to fraction form
312,152.40/430,771.80 = 176,192.10/x - Step 3: Cross multiply
312,152.40x = 430,771.80 × 176,192.10 - Step 4: Simplify right side
312,152.40x = 75,898,588,062.78 - Step 5: Solve for x
x = 75,898,588,062.78/312,152.40 - Step 6: Final answer
x = 243,145.94
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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.