Finding the Fourth Proportional to 366,918.95, 550,378.43 and 331,489.55
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Solution
The fourth proportional to 366,918.95, 550,378.43 and 331,489.55 is: 497,234.33
Step by Step Solution
- Step 1: Write the proportion equation
366,918.95 : 550,378.43 = 331,489.55 : x - Step 2: Convert to fraction form
366,918.95/550,378.43 = 331,489.55/x - Step 3: Cross multiply
366,918.95x = 550,378.43 × 331,489.55 - Step 4: Simplify right side
366,918.95x = 182,444,698,090.41 - Step 5: Solve for x
x = 182,444,698,090.41/366,918.95 - Step 6: Final answer
x = 497,234.33
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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.