Finding the Fourth Proportional to 207,664.98, 286,702.17 and 136,169.70
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Solution
The fourth proportional to 207,664.98, 286,702.17 and 136,169.70 is: 187,995.82
Step by Step Solution
- Step 1: Write the proportion equation
207,664.98 : 286,702.17 = 136,169.70 : x - Step 2: Convert to fraction form
207,664.98/286,702.17 = 136,169.70/x - Step 3: Cross multiply
207,664.98x = 286,702.17 × 136,169.70 - Step 4: Simplify right side
207,664.98x = 39,040,148,478.25 - Step 5: Solve for x
x = 39,040,148,478.25/207,664.98 - Step 6: Final answer
x = 187,995.82
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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.