Finding the Fourth Proportional to 211,348.79, 291,661.18 and 115,857.08
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Solution
The fourth proportional to 211,348.79, 291,661.18 and 115,857.08 is: 159,882.68
Step by Step Solution
- Step 1: Write the proportion equation
211,348.79 : 291,661.18 = 115,857.08 : x - Step 2: Convert to fraction form
211,348.79/291,661.18 = 115,857.08/x - Step 3: Cross multiply
211,348.79x = 291,661.18 × 115,857.08 - Step 4: Simplify right side
211,348.79x = 33,791,010,916.21 - Step 5: Solve for x
x = 33,791,010,916.21/211,348.79 - Step 6: Final answer
x = 159,882.68
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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.