Finding the Fourth Proportional to 318,842.09, 440,021.97 and 175,602.09
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Solution
The fourth proportional to 318,842.09, 440,021.97 and 175,602.09 is: 242,341.84
Step by Step Solution
- Step 1: Write the proportion equation
318,842.09 : 440,021.97 = 175,602.09 : x - Step 2: Convert to fraction form
318,842.09/440,021.97 = 175,602.09/x - Step 3: Cross multiply
318,842.09x = 440,021.97 × 175,602.09 - Step 4: Simplify right side
318,842.09x = 77,268,777,577.92 - Step 5: Solve for x
x = 77,268,777,577.92/318,842.09 - Step 6: Final answer
x = 242,341.84
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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.