Finding the Fourth Proportional to 212,597.79, 293,397.57 and 121,953.12
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Solution
The fourth proportional to 212,597.79, 293,397.57 and 121,953.12 is: 168,302.54
Step by Step Solution
- Step 1: Write the proportion equation
212,597.79 : 293,397.57 = 121,953.12 : x - Step 2: Convert to fraction form
212,597.79/293,397.57 = 121,953.12/x - Step 3: Cross multiply
212,597.79x = 293,397.57 × 121,953.12 - Step 4: Simplify right side
212,597.79x = 35,780,749,061.92 - Step 5: Solve for x
x = 35,780,749,061.92/212,597.79 - Step 6: Final answer
x = 168,302.54
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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.