Finding the Fourth Proportional to 211,741.08, 292,206.78 and 121,111.80
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Solution
The fourth proportional to 211,741.08, 292,206.78 and 121,111.80 is: 167,136.62
Step by Step Solution
- Step 1: Write the proportion equation
211,741.08 : 292,206.78 = 121,111.80 : x - Step 2: Convert to fraction form
211,741.08/292,206.78 = 121,111.80/x - Step 3: Cross multiply
211,741.08x = 292,206.78 × 121,111.80 - Step 4: Simplify right side
211,741.08x = 35,389,689,098.00 - Step 5: Solve for x
x = 35,389,689,098.00/211,741.08 - Step 6: Final answer
x = 167,136.62
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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.