Finding the Fourth Proportional to 211,112.41, 291,335.24 and 115,619.08
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Solution
The fourth proportional to 211,112.41, 291,335.24 and 115,619.08 is: 159,554.39
Step by Step Solution
- Step 1: Write the proportion equation
211,112.41 : 291,335.24 = 115,619.08 : x - Step 2: Convert to fraction form
211,112.41/291,335.24 = 115,619.08/x - Step 3: Cross multiply
211,112.41x = 291,335.24 × 115,619.08 - Step 4: Simplify right side
211,112.41x = 33,683,912,420.38 - Step 5: Solve for x
x = 33,683,912,420.38/211,112.41 - Step 6: Final answer
x = 159,554.39
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1.5x scale
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.