Finding the Fourth Proportional to 211,878.72, 292,399.20 and 116,383.68
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Solution
The fourth proportional to 211,878.72, 292,399.20 and 116,383.68 is: 160,613.09
Step by Step Solution
- Step 1: Write the proportion equation
211,878.72 : 292,399.20 = 116,383.68 : x - Step 2: Convert to fraction form
211,878.72/292,399.20 = 116,383.68/x - Step 3: Cross multiply
211,878.72x = 292,399.20 × 116,383.68 - Step 4: Simplify right side
211,878.72x = 34,030,494,925.06 - Step 5: Solve for x
x = 34,030,494,925.06/211,878.72 - Step 6: Final answer
x = 160,613.09
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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.