Finding the Fourth Proportional to 211,986.24, 292,557.30 and 121,370.64
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Solution
The fourth proportional to 211,986.24, 292,557.30 and 121,370.64 is: 167,500.81
Step by Step Solution
- Step 1: Write the proportion equation
211,986.24 : 292,557.30 = 121,370.64 : x - Step 2: Convert to fraction form
211,986.24/292,557.30 = 121,370.64/x - Step 3: Cross multiply
211,986.24x = 292,557.30 × 121,370.64 - Step 4: Simplify right side
211,986.24x = 35,507,866,737.67 - Step 5: Solve for x
x = 35,507,866,737.67/211,986.24 - Step 6: Final answer
x = 167,500.81
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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.