Finding the Fourth Proportional to 331,247.80, 457,121.46 and 180,344.68
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Solution
The fourth proportional to 331,247.80, 457,121.46 and 180,344.68 is: 248,875.38
Step by Step Solution
- Step 1: Write the proportion equation
331,247.80 : 457,121.46 = 180,344.68 : x - Step 2: Convert to fraction form
331,247.80/457,121.46 = 180,344.68/x - Step 3: Cross multiply
331,247.80x = 457,121.46 × 180,344.68 - Step 4: Simplify right side
331,247.80x = 82,439,423,424.83 - Step 5: Solve for x
x = 82,439,423,424.83/331,247.80 - Step 6: Final answer
x = 248,875.38
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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.