Finding the Fourth Proportional to 318,858.09, 440,003.96 and 175,618.13
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Solution
The fourth proportional to 318,858.09, 440,003.96 and 175,618.13 is: 242,341.89
Step by Step Solution
- Step 1: Write the proportion equation
318,858.09 : 440,003.96 = 175,618.13 : x - Step 2: Convert to fraction form
318,858.09/440,003.96 = 175,618.13/x - Step 3: Cross multiply
318,858.09x = 440,003.96 × 175,618.13 - Step 4: Simplify right side
318,858.09x = 77,272,671,959.69 - Step 5: Solve for x
x = 77,272,671,959.69/318,858.09 - Step 6: Final answer
x = 242,341.89
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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.