Finding the Fourth Proportional to 211,088.30, 291,299.77 and 114,291.68
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Solution
The fourth proportional to 211,088.30, 291,299.77 and 114,291.68 is: 157,721.39
Step by Step Solution
- Step 1: Write the proportion equation
211,088.30 : 291,299.77 = 114,291.68 : x - Step 2: Convert to fraction form
211,088.30/291,299.77 = 114,291.68/x - Step 3: Cross multiply
211,088.30x = 291,299.77 × 114,291.68 - Step 4: Simplify right side
211,088.30x = 33,293,140,096.91 - Step 5: Solve for x
x = 33,293,140,096.91/211,088.30 - Step 6: Final answer
x = 157,721.39
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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.