Finding the Fourth Proportional to 207,555.38, 286,314.50 and 138,763.29
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Solution
The fourth proportional to 207,555.38, 286,314.50 and 138,763.29 is: 191,418.52
Step by Step Solution
- Step 1: Write the proportion equation
207,555.38 : 286,314.50 = 138,763.29 : x - Step 2: Convert to fraction form
207,555.38/286,314.50 = 138,763.29/x - Step 3: Cross multiply
207,555.38x = 286,314.50 × 138,763.29 - Step 4: Simplify right side
207,555.38x = 39,729,942,634.75 - Step 5: Solve for x
x = 39,729,942,634.75/207,555.38 - Step 6: Final answer
x = 191,418.52
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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.