Finding the Fourth Proportional to 211,731.49, 292,189.98 and 114,935.68
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Solution
The fourth proportional to 211,731.49, 292,189.98 and 114,935.68 is: 158,611.52
Step by Step Solution
- Step 1: Write the proportion equation
211,731.49 : 292,189.98 = 114,935.68 : x - Step 2: Convert to fraction form
211,731.49/292,189.98 = 114,935.68/x - Step 3: Cross multiply
211,731.49x = 292,189.98 × 114,935.68 - Step 4: Simplify right side
211,731.49x = 33,583,054,040.49 - Step 5: Solve for x
x = 33,583,054,040.49/211,731.49 - Step 6: Final answer
x = 158,611.52
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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.