Finding the Fourth Proportional to 212,525.50, 293,259.68 and 121,876.78
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Solution
The fourth proportional to 212,525.50, 293,259.68 and 121,876.78 is: 168,175.33
Step by Step Solution
- Step 1: Write the proportion equation
212,525.50 : 293,259.68 = 121,876.78 : x - Step 2: Convert to fraction form
212,525.50/293,259.68 = 121,876.78/x - Step 3: Cross multiply
212,525.50x = 293,259.68 × 121,876.78 - Step 4: Simplify right side
212,525.50x = 35,741,545,502.23 - Step 5: Solve for x
x = 35,741,545,502.23/212,525.50 - Step 6: Final answer
x = 168,175.33
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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.