Finding the Fourth Proportional to 211,433.22, 291,775.37 and 115,939.08
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Solution
The fourth proportional to 211,433.22, 291,775.37 and 115,939.08 is: 159,994.57
Step by Step Solution
- Step 1: Write the proportion equation
211,433.22 : 291,775.37 = 115,939.08 : x - Step 2: Convert to fraction form
211,433.22/291,775.37 = 115,939.08/x - Step 3: Cross multiply
211,433.22x = 291,775.37 × 115,939.08 - Step 4: Simplify right side
211,433.22x = 33,828,167,384.76 - Step 5: Solve for x
x = 33,828,167,384.76/211,433.22 - Step 6: Final answer
x = 159,994.57
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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.