Finding the Fourth Proportional to 212,015.96, 292,575.84 and 121,368.92
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Solution
The fourth proportional to 212,015.96, 292,575.84 and 121,368.92 is: 167,485.57
Step by Step Solution
- Step 1: Write the proportion equation
212,015.96 : 292,575.84 = 121,368.92 : x - Step 2: Convert to fraction form
212,015.96/292,575.84 = 121,368.92/x - Step 3: Cross multiply
212,015.96x = 292,575.84 × 121,368.92 - Step 4: Simplify right side
212,015.96x = 35,509,613,718.89 - Step 5: Solve for x
x = 35,509,613,718.89/212,015.96 - Step 6: Final answer
x = 167,485.57
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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.