Finding the Fourth Proportional to 208,407.41, 287,497.37 and 136,777.49
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Solution
The fourth proportional to 208,407.41, 287,497.37 and 136,777.49 is: 188,684.12
Step by Step Solution
- Step 1: Write the proportion equation
208,407.41 : 287,497.37 = 136,777.49 : x - Step 2: Convert to fraction form
208,407.41/287,497.37 = 136,777.49/x - Step 3: Cross multiply
208,407.41x = 287,497.37 × 136,777.49 - Step 4: Simplify right side
208,407.41x = 39,323,167,966.31 - Step 5: Solve for x
x = 39,323,167,966.31/208,407.41 - Step 6: Final answer
x = 188,684.12
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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.