Finding the Fourth Proportional to 207,963.73, 286,992.74 and 117,319.42
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Solution
The fourth proportional to 207,963.73, 286,992.74 and 117,319.42 is: 161,902.38
Step by Step Solution
- Step 1: Write the proportion equation
207,963.73 : 286,992.74 = 117,319.42 : x - Step 2: Convert to fraction form
207,963.73/286,992.74 = 117,319.42/x - Step 3: Cross multiply
207,963.73x = 286,992.74 × 117,319.42 - Step 4: Simplify right side
207,963.73x = 33,669,821,801.01 - Step 5: Solve for x
x = 33,669,821,801.01/207,963.73 - Step 6: Final answer
x = 161,902.38
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1.5x scale
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.