Finding the Fourth Proportional to 211,394.60, 291,718.23 and 115,898.03
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Solution
The fourth proportional to 211,394.60, 291,718.23 and 115,898.03 is: 159,935.82
Step by Step Solution
- Step 1: Write the proportion equation
211,394.60 : 291,718.23 = 115,898.03 : x - Step 2: Convert to fraction form
211,394.60/291,718.23 = 115,898.03/x - Step 3: Cross multiply
211,394.60x = 291,718.23 × 115,898.03 - Step 4: Simplify right side
211,394.60x = 33,809,568,172.09 - Step 5: Solve for x
x = 33,809,568,172.09/211,394.60 - Step 6: Final answer
x = 159,935.82
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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.