Finding the Fourth Proportional to 212,514.99, 293,282.96 and 121,870.23
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Solution
The fourth proportional to 212,514.99, 293,282.96 and 121,870.23 is: 168,187.96
Step by Step Solution
- Step 1: Write the proportion equation
212,514.99 : 293,282.96 = 121,870.23 : x - Step 2: Convert to fraction form
212,514.99/293,282.96 = 121,870.23/x - Step 3: Cross multiply
212,514.99x = 293,282.96 × 121,870.23 - Step 4: Simplify right side
212,514.99x = 35,742,461,790.28 - Step 5: Solve for x
x = 35,742,461,790.28/212,514.99 - Step 6: Final answer
x = 168,187.96
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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.