Finding the Fourth Proportional to 211,615.97, 292,029.89 and 120,973.94
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Solution
The fourth proportional to 211,615.97, 292,029.89 and 120,973.94 is: 166,943.94
Step by Step Solution
- Step 1: Write the proportion equation
211,615.97 : 292,029.89 = 120,973.94 : x - Step 2: Convert to fraction form
211,615.97/292,029.89 = 120,973.94/x - Step 3: Cross multiply
211,615.97x = 292,029.89 × 120,973.94 - Step 4: Simplify right side
211,615.97x = 35,328,004,326.05 - Step 5: Solve for x
x = 35,328,004,326.05/211,615.97 - Step 6: Final answer
x = 166,943.94
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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.