Finding the Fourth Proportional to 255,201.30, 352,170.45 and 142,021.62
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Solution
The fourth proportional to 255,201.30, 352,170.45 and 142,021.62 is: 195,985.75
Step by Step Solution
- Step 1: Write the proportion equation
255,201.30 : 352,170.45 = 142,021.62 : x - Step 2: Convert to fraction form
255,201.30/352,170.45 = 142,021.62/x - Step 3: Cross multiply
255,201.30x = 352,170.45 × 142,021.62 - Step 4: Simplify right side
255,201.30x = 50,015,817,825.13 - Step 5: Solve for x
x = 50,015,817,825.13/255,201.30 - Step 6: Final answer
x = 195,985.75
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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.