Finding the Fourth Proportional to 212,654.12, 293,430.66 and 120,759.08
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Solution
The fourth proportional to 212,654.12, 293,430.66 and 120,759.08 is: 166,629.34
Step by Step Solution
- Step 1: Write the proportion equation
212,654.12 : 293,430.66 = 120,759.08 : x - Step 2: Convert to fraction form
212,654.12/293,430.66 = 120,759.08/x - Step 3: Cross multiply
212,654.12x = 293,430.66 × 120,759.08 - Step 4: Simplify right side
212,654.12x = 35,434,416,545.39 - Step 5: Solve for x
x = 35,434,416,545.39/212,654.12 - Step 6: Final answer
x = 166,629.34
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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.