Finding the Fourth Proportional to 331,855.14, 457,999.41 and 188,636.70
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Solution
The fourth proportional to 331,855.14, 457,999.41 and 188,636.70 is: 260,340.99
Step by Step Solution
- Step 1: Write the proportion equation
331,855.14 : 457,999.41 = 188,636.70 : x - Step 2: Convert to fraction form
331,855.14/457,999.41 = 188,636.70/x - Step 3: Cross multiply
331,855.14x = 457,999.41 × 188,636.70 - Step 4: Simplify right side
331,855.14x = 86,395,497,304.35 - Step 5: Solve for x
x = 86,395,497,304.35/331,855.14 - Step 6: Final answer
x = 260,340.99
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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.