Finding the Fourth Proportional to 331,315.05, 457,202.65 and 202,469.19
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Solution
The fourth proportional to 331,315.05, 457,202.65 and 202,469.19 is: 279,400.08
Step by Step Solution
- Step 1: Write the proportion equation
331,315.05 : 457,202.65 = 202,469.19 : x - Step 2: Convert to fraction form
331,315.05/457,202.65 = 202,469.19/x - Step 3: Cross multiply
331,315.05x = 457,202.65 × 202,469.19 - Step 4: Simplify right side
331,315.05x = 92,569,450,211.35 - Step 5: Solve for x
x = 92,569,450,211.35/331,315.05 - Step 6: Final answer
x = 279,400.08
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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.