Finding the Fourth Proportional to 213,003.93, 293,959.68 and 122,389.23
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Solution
The fourth proportional to 213,003.93, 293,959.68 and 122,389.23 is: 168,905.33
Step by Step Solution
- Step 1: Write the proportion equation
213,003.93 : 293,959.68 = 122,389.23 : x - Step 2: Convert to fraction form
213,003.93/293,959.68 = 122,389.23/x - Step 3: Cross multiply
213,003.93x = 293,959.68 × 122,389.23 - Step 4: Simplify right side
213,003.93x = 35,977,498,886.25 - Step 5: Solve for x
x = 35,977,498,886.25/213,003.93 - Step 6: Final answer
x = 168,905.33
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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.