Finding the Fourth Proportional to 245,441.36, 338,696.70 and 138,004.99
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Solution
The fourth proportional to 245,441.36, 338,696.70 and 138,004.99 is: 190,439.93
Step by Step Solution
- Step 1: Write the proportion equation
245,441.36 : 338,696.70 = 138,004.99 : x - Step 2: Convert to fraction form
245,441.36/338,696.70 = 138,004.99/x - Step 3: Cross multiply
245,441.36x = 338,696.70 × 138,004.99 - Step 4: Simplify right side
245,441.36x = 46,741,834,696.53 - Step 5: Solve for x
x = 46,741,834,696.53/245,441.36 - Step 6: Final answer
x = 190,439.93
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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.