Finding the Fourth Proportional to 312,012.96, 430,540.84 and 176,038.96
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Solution
The fourth proportional to 312,012.96, 430,540.84 and 176,038.96 is: 242,912.86
Step by Step Solution
- Step 1: Write the proportion equation
312,012.96 : 430,540.84 = 176,038.96 : x - Step 2: Convert to fraction form
312,012.96/430,540.84 = 176,038.96/x - Step 3: Cross multiply
312,012.96x = 430,540.84 × 176,038.96 - Step 4: Simplify right side
312,012.96x = 75,791,961,711.13 - Step 5: Solve for x
x = 75,791,961,711.13/312,012.96 - Step 6: Final answer
x = 242,912.86
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1.5x scale
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.