Finding the Fourth Proportional to 207,984.41, 286,886.36 and 136,369.07
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Solution
The fourth proportional to 207,984.41, 286,886.36 and 136,369.07 is: 188,102.68
Step by Step Solution
- Step 1: Write the proportion equation
207,984.41 : 286,886.36 = 136,369.07 : x - Step 2: Convert to fraction form
207,984.41/286,886.36 = 136,369.07/x - Step 3: Cross multiply
207,984.41x = 286,886.36 × 136,369.07 - Step 4: Simplify right side
207,984.41x = 39,122,425,427.04 - Step 5: Solve for x
x = 39,122,425,427.04/207,984.41 - Step 6: Final answer
x = 188,102.68
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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.