Finding the Fourth Proportional to 323,885.99, 485,712.33 and 136,912.07
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Solution
The fourth proportional to 323,885.99, 485,712.33 and 136,912.07 is: 205,318.79
Step by Step Solution
- Step 1: Write the proportion equation
323,885.99 : 485,712.33 = 136,912.07 : x - Step 2: Convert to fraction form
323,885.99/485,712.33 = 136,912.07/x - Step 3: Cross multiply
323,885.99x = 485,712.33 × 136,912.07 - Step 4: Simplify right side
323,885.99x = 66,499,880,524.82 - Step 5: Solve for x
x = 66,499,880,524.82/323,885.99 - Step 6: Final answer
x = 205,318.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.