Finding the Fourth Proportional to 312,201.14, 430,837.54 and 168,961.21
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Solution
The fourth proportional to 312,201.14, 430,837.54 and 168,961.21 is: 233,166.45
Step by Step Solution
- Step 1: Write the proportion equation
312,201.14 : 430,837.54 = 168,961.21 : x - Step 2: Convert to fraction form
312,201.14/430,837.54 = 168,961.21/x - Step 3: Cross multiply
312,201.14x = 430,837.54 × 168,961.21 - Step 4: Simplify right side
312,201.14x = 72,794,830,572.33 - Step 5: Solve for x
x = 72,794,830,572.33/312,201.14 - Step 6: Final answer
x = 233,166.45
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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.