Finding the Fourth Proportional to 380,252.63, 570,939.66 and 212,101.49
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Solution
The fourth proportional to 380,252.63, 570,939.66 and 212,101.49 is: 318,464.99
Step by Step Solution
- Step 1: Write the proportion equation
380,252.63 : 570,939.66 = 212,101.49 : x - Step 2: Convert to fraction form
380,252.63/570,939.66 = 212,101.49/x - Step 3: Cross multiply
380,252.63x = 570,939.66 × 212,101.49 - Step 4: Simplify right side
380,252.63x = 121,097,149,731.40 - Step 5: Solve for x
x = 121,097,149,731.40/380,252.63 - Step 6: Final answer
x = 318,464.99
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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.