Finding the Fourth Proportional to 343,918.78, 516,228.09 and 231,244.54
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Solution
The fourth proportional to 343,918.78, 516,228.09 and 231,244.54 is: 347,102.09
Step by Step Solution
- Step 1: Write the proportion equation
343,918.78 : 516,228.09 = 231,244.54 : x - Step 2: Convert to fraction form
343,918.78/516,228.09 = 231,244.54/x - Step 3: Cross multiply
343,918.78x = 516,228.09 × 231,244.54 - Step 4: Simplify right side
343,918.78x = 119,374,927,207.13 - Step 5: Solve for x
x = 119,374,927,207.13/343,918.78 - Step 6: Final answer
x = 347,102.09
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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.