Finding the Fourth Proportional to 309,270.76, 426,793.35 and 173,305.78
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Solution
The fourth proportional to 309,270.76, 426,793.35 and 173,305.78 is: 239,161.81
Step by Step Solution
- Step 1: Write the proportion equation
309,270.76 : 426,793.35 = 173,305.78 : x - Step 2: Convert to fraction form
309,270.76/426,793.35 = 173,305.78/x - Step 3: Cross multiply
309,270.76x = 426,793.35 × 173,305.78 - Step 4: Simplify right side
309,270.76x = 73,965,754,003.48 - Step 5: Solve for x
x = 73,965,754,003.48/309,270.76 - Step 6: Final answer
x = 239,161.81
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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.