Finding the Fourth Proportional to 245,143.93, 338,201.34 and 141,759.02
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Solution
The fourth proportional to 245,143.93, 338,201.34 and 141,759.02 is: 195,571.19
Step by Step Solution
- Step 1: Write the proportion equation
245,143.93 : 338,201.34 = 141,759.02 : x - Step 2: Convert to fraction form
245,143.93/338,201.34 = 141,759.02/x - Step 3: Cross multiply
245,143.93x = 338,201.34 × 141,759.02 - Step 4: Simplify right side
245,143.93x = 47,943,090,521.09 - Step 5: Solve for x
x = 47,943,090,521.09/245,143.93 - Step 6: Final answer
x = 195,571.19
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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.