Finding the Fourth Proportional to 318,998.96, 440,216.40 and 175,755.68
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Solution
The fourth proportional to 318,998.96, 440,216.40 and 175,755.68 is: 242,541.65
Step by Step Solution
- Step 1: Write the proportion equation
318,998.96 : 440,216.40 = 175,755.68 : x - Step 2: Convert to fraction form
318,998.96/440,216.40 = 175,755.68/x - Step 3: Cross multiply
318,998.96x = 440,216.40 × 175,755.68 - Step 4: Simplify right side
318,998.96x = 77,370,532,729.15 - Step 5: Solve for x
x = 77,370,532,729.15/318,998.96 - Step 6: Final answer
x = 242,541.65
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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.