Finding the Fourth Proportional to 211,808.14, 292,286.48 and 115,008.20
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Solution
The fourth proportional to 211,808.14, 292,286.48 and 115,008.20 is: 158,706.56
Step by Step Solution
- Step 1: Write the proportion equation
211,808.14 : 292,286.48 = 115,008.20 : x - Step 2: Convert to fraction form
211,808.14/292,286.48 = 115,008.20/x - Step 3: Cross multiply
211,808.14x = 292,286.48 × 115,008.20 - Step 4: Simplify right side
211,808.14x = 33,615,341,949.14 - Step 5: Solve for x
x = 33,615,341,949.14/211,808.14 - Step 6: Final answer
x = 158,706.56
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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.