Finding the Fourth Proportional to 254,716.38, 351,506.79 and 138,428.97
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Solution
The fourth proportional to 254,716.38, 351,506.79 and 138,428.97 is: 191,030.99
Step by Step Solution
- Step 1: Write the proportion equation
254,716.38 : 351,506.79 = 138,428.97 : x - Step 2: Convert to fraction form
254,716.38/351,506.79 = 138,428.97/x - Step 3: Cross multiply
254,716.38x = 351,506.79 × 138,428.97 - Step 4: Simplify right side
254,716.38x = 48,658,722,887.71 - Step 5: Solve for x
x = 48,658,722,887.71/254,716.38 - Step 6: Final answer
x = 191,030.99
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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.