Finding the Fourth Proportional to 212,230.50, 292,919.69 and 121,647.18
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Solution
The fourth proportional to 212,230.50, 292,919.69 and 121,647.18 is: 167,896.95
Step by Step Solution
- Step 1: Write the proportion equation
212,230.50 : 292,919.69 = 121,647.18 : x - Step 2: Convert to fraction form
212,230.50/292,919.69 = 121,647.18/x - Step 3: Cross multiply
212,230.50x = 292,919.69 × 121,647.18 - Step 4: Simplify right side
212,230.50x = 35,632,853,646.74 - Step 5: Solve for x
x = 35,632,853,646.74/212,230.50 - Step 6: Final answer
x = 167,896.95
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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.