Finding the Fourth Proportional to 385,537.44, 531,978.18 and 242,195.96
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Solution
The fourth proportional to 385,537.44, 531,978.18 and 242,195.96 is: 334,190.54
Step by Step Solution
- Step 1: Write the proportion equation
385,537.44 : 531,978.18 = 242,195.96 : x - Step 2: Convert to fraction form
385,537.44/531,978.18 = 242,195.96/x - Step 3: Cross multiply
385,537.44x = 531,978.18 × 242,195.96 - Step 4: Simplify right side
385,537.44x = 128,842,966,004.15 - Step 5: Solve for x
x = 128,842,966,004.15/385,537.44 - Step 6: Final answer
x = 334,190.54
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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.