Finding the Fourth Proportional to 211,321.96, 291,631.53 and 115,828.63
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Solution
The fourth proportional to 211,321.96, 291,631.53 and 115,828.63 is: 159,847.47
Step by Step Solution
- Step 1: Write the proportion equation
211,321.96 : 291,631.53 = 115,828.63 : x - Step 2: Convert to fraction form
211,321.96/291,631.53 = 115,828.63/x - Step 3: Cross multiply
211,321.96x = 291,631.53 × 115,828.63 - Step 4: Simplify right side
211,321.96x = 33,779,280,584.70 - Step 5: Solve for x
x = 33,779,280,584.70/211,321.96 - Step 6: Final answer
x = 159,847.47
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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.