Finding the Fourth Proportional to 212,565.12, 293,352.18 and 121,920.44
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Solution
The fourth proportional to 212,565.12, 293,352.18 and 121,920.44 is: 168,257.27
Step by Step Solution
- Step 1: Write the proportion equation
212,565.12 : 293,352.18 = 121,920.44 : x - Step 2: Convert to fraction form
212,565.12/293,352.18 = 121,920.44/x - Step 3: Cross multiply
212,565.12x = 293,352.18 × 121,920.44 - Step 4: Simplify right side
212,565.12x = 35,765,626,860.56 - Step 5: Solve for x
x = 35,765,626,860.56/212,565.12 - Step 6: Final answer
x = 168,257.27
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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.